Acipenseres 
Acipenseres (as-i-pen'so-rex;, . /il. [NL., pi. 
of Aeipenaer.} An ordinal term suggested by 
Bonaparte, 1837, as a substitute for Sturiotuxor 
Cliondrostei (which see). 
acipenserid (as-i-pen'se-rid), n. One of the 
Acipenseridce ; a sturgeon. 
Acipenseridse (as"i-pen-ser'i-de), n. pi. [NL., 
< At-iprtixrr + -ida'.} The sturgeons, a family of 
chondrosteous ganoid fishes, sometimes includ- 
ing only the genus Acipenser, sometimes also 
the genus 8capliirlii/>icln>px. The body is elongate 
subc.vlindric, with 5 rows of bony bucklers ; the snout is 
produced, subspatulate or conical, with the mouth on its 
lou IT surface, small, transverse, protractile, and toothless ; 
there are 4 barbels in a transverse series on the lower side 
of the snout ; the ventral fins have a single series of fulcra 
in front, ami the dorsal and anal fins approximate to the 
raiidal, which is heterocereal. Sec Afif'ii^ ,. 
Acipenserinae (as-i-pen-se-ri'ne), n. pi. [NL., < 
Ai'ipi'itxcr + -i>ue.} A suBfamily of Acipenseri- 
<>\ typified by the genus Acipenser. By older 
ichthyologists it was made coequal with the family. 
Lately it has been restricted to Acipenneridce with spira- 
dcs, subcouic snout, and thick tail, and thus made to in- 
clude only the true sturgeous. 
acipenserine (as-i-pen'se-rin), . One of the 
Al-il>rnxrrill/l'. 
acipenseroid (as-i-pen'se-roid), a. and n. I. a. 
Having the characters of the Acipenserida: 
II. . A fish of the family Acipenseridce; an 
acipenserid. 
Acipenseroidae (as-i-pen-se-roi'de), n. pi. [NL.] 
Same as Acipensertda;. 
Acipenseroidei (as-i-peu-se-roi'de-i), . pi. 
[< Acipenser + -oid-ei.} A name used by some 
ichthyologists as a subordinal name in place 
of Chondrostei. 
aciurgyt (as'i-er-ji), 11. [< Gr. aisic, a point, + 
-ovpyia (<-o-ep7z), in comp. , working, <l/ryeiv = 
E. work: see demiurgy ana surgery.} Operative 
surgery. 
acker H, . An obsolete form of acre (Middle 
English a kef, etc.). 
acker 2 (ak'er), . [E. dial. (Sc. aiker in sense 
2), <ME. aker, flood-tide, a bore, an eager; 
prob. a var. of eager%, q. v.] If. Flood-tide; a 
bore ; an eager. 
Aki/r [var. ake.r} of the see flowyng, impetus inaru. 
Prompt. Pare. 
2. A ripple or furrow on the surface of water. 
[Prov. Eng. and Scotch.] 
acketont, See acton. 
ackman (ak'man), n. ; pi. ackmen (-men). [< 
ack-, of unknown origin, + man.} A sailors' 
name for a fresh-water thief, or one who steals 
on navigable rivers. Also called ack-pirate. 
Sailors' Word-book. 
acknowt (ak-no'), . 1. [<ME. aknowen, know, 
acknowledge, < AS. oncndwan, perceive, know, 
< on- for and-(= Gr. avri, against, back, = Goth. 
anda-), + cnawan, know : see a- 5 and know.} To 
recognize ; acknowledge ; confess. 
Yon will not be acknown, sir, why, 'tis wise : 
Thus do all gamesters at all games dissemble. 
B. Jomoii, Volpone, v. 6. 
acknowledge (ak-nol'ej), . t. ; pret. and pp. ac- 
knowledged, ppr. acknowledging. [< ME. knoic- 
lechen, kitoulechen, cnawlechen, acknowledge, < 
kiiotaleelie, knouleene, cnawleclte, knowledge : see 
knowledge. The prefix ac-, for a-, is due to the 
frequent ME. verb aknowen: see acknow.} 1. 
49 
Acochlides 
So great . n soldier as tin- old French Marshal Montluc 
acknowledge* that he has often trembled with fear, and 
rfloovored courage when he had said a prayer for th> 
sion. Knterxi'ti. r ( ,ii)'a-r. 
3. To own the genuineness of ; own as binding 
or of legal force: as, to acknowledge a deed. aclis (ak'lis), .; pi. aclides (-li-dez). [< L. 
Aclinic line, the name Kiveit by I'ntfo-nr Vu^nst (o an 
Irregularcnrve kxxtted upon the rarfaoe .,t thr earth in the 
neighborhood of the equator, where the magnetic needle 
balances itself horizontally, having no dip. It has hi -. -n 
also termed the m/f/'"''<''' <'<[imti>r. 
4. To admit or certify the receipt of ; give infor- 
mation of the arrival of: as, to acknowledge a let- 
ter or a remittance To acknowledge a deed H- 
other instrument), in law, to avow before a proper officer or 
court that one has executed it, for the purpose of having a 
certificate thereof appended which will qualify the instru- 
ment to be admitted in evidence or to record, or both, 
without further proof of genuineness. As often used, the 
word implies not only the avowal of the party, but also 
the procuring of the official certificate. Thus a deed is said 
. . , 
a' 80 aclys, a small javelin, said to be a corrup- 
tion of Gr. aymi'/jc, a hook, barb, taken in the 
sense of aynvfo/, a bend, twist, thong of a jave- 
lin, the javelin itself, fern, of dy/ovuic, crooked, 
bent, = L. niii/iiliix, angle: see aw/te 3 .] 1. In 
Kom. antiq., a heavy missile weapon ; an aclide. 
2. [cap.} [NL.] The representative genus 
of the family Aclida; (which see). Loven. 1846. 
. pl-n-a f.iV'lisA n Sumo ,*,!;* 1 
to have been acknowledged when it actually bears the cer- A 
tiflcate. = Syn. Acknowledge, Admit, Confess, Own, Avow, ACmsea (ak-me a), n. [NL., < (jr. a/c,uaior, at the 
grant, concede, allow, assent to, profess, take cognizance height or prime, in full bloom, vigorous, < an/a'/, 
of. To acknowledge is to state one's knowledge of ; it may ' 
have a personal object: as, he acknoirle.dye.il her as his 
wife ; as applied to acts, it often implies confession under 
external pressure. Admit has a similar reference to so- 
licited or forced assent: as, he admitted the charge; he 
' 
, 
admitted that his opponent was a good man. CoiiJ'ejm 
implies the admission of that which is not creditable, as 
a point, the highest point : see acme.} A genus 
of limpets, of the family Patellida;, or giving 
name to a family AcmaHda;. A. tentudinali* is the 
common limpet of the northern coast of the United States, 
of large size and variegated color, being usually mottled 
with brown, green, and white. Eschschottz, 1833. 
wrong conduct, and belongs rather to specified things or acmffild (ak-me'id), ti. A limpet of the family 
particular transactions. He acknowledged the author- 4 r ma>i(ltr i false liTnr.pt 
ship of the hook; he admitted the truth of the proposition; . ,j ' , , lse ,f lm P et - 
he con/esi/ed that he was guilty of the theft. Confess is Acm33ia33 (ak-me i-de), n. pi. [NL., < Acmwa 
the strongest of these words, being applied to actions of + -ida;.} A family of false or single-gilled 
more moment than ackimcledge, admit, or own. To own limpets, or zygobranchiate gastropods having 
a single cervical gill. Leading genera are Ac- 
mcva, Lottia, and Scurria. 
Acmaeodera (ak-me-od'e-ra), n. [NL.,<Gr. 
, , . 
is a less formal act ; there is a tendency, on account of its 
brevity, to apply the word to anything that a man takes 
home to himself. To avow is a bolder~act, generally per- 
formed in spite of adverse influences, and does not ne- _ 
cessarily imply that the action or sentiment avowed is aK/Mwc, at "the height of prime/in full bloom! 
blameworthy. loarArnoicfodr/e an error, admits fact, con- .^_ _._/./ i..../. . "_ s _i. : , . ,., " 
fess a fault, own one's folly, a row a belief. 
vigorous ((.OK/iJj, a point: see acme), + (?) Sep, 
skin ; allusion not clear. ] A genus of buprestid 
genius and learning. ilacaulay, Speech"on Copyright, black," with yellow spots on the elytra. 
Quotation confesses inferiority. acme (ak'me), . [< Gr. anp/, edge, point, the 
Emerxon, Letters and Social Aims. 
thrning her weakness and evil behaviour. 
Hood, Bridge of Sighs. 
The tempest of passion with which he [Othello] commits 
his crnues, and the haughty fearlessness with which he 
a mwi them, give an extraordinary interest to his character. 
Macaulay, Machiavelli. 
acknowledgement, . See acknowledgment. 
acknowledger (ak-nol'e-jer), . One who ac- 
knowledges. 
acknowledgment (ak-uol'ej-ment), n. 1. Aii 
admission or profession of knowledge or appre- 
hension ; a recognition of the existence or truth 
of anything : as, the acknowledgment of a sov- 
ereign power, or of a debt. 
Immediately upon the acknowledgment of the Christian 
faith, the eunuch was baptized by Philip. Hooker. 
2. An expression or manifestation of percep- 
tion or appreciation; recognition, avowal, or 
confession: as, an acknowledgment of kindness 
or of one's wrong-doing. 
With this acknowledgment, 
That God fought for us. Shak., Hen. V., iv. 8. 
highest point, the prime, crisis; akin to any, 
point, aiiic, point, L. acus, needle, aeer, sharp, 
etc. : see acid.} 1. The top or highest point; 
the furthest point attained ; the utmost reach. 
For beauty's acme hath a term as brief 
As the wave's poise before it break in pearls. 
Lowell, Cathedral. 
The independence of the individual, the power to stand 
alone as regards men and the gods, is the acme of stoical 
attainment. G. I'. Fin/ier, Begin, of Christianity, p. 178. 
2. The maturity or perfection of an animal. 
3. In med. : (a) The height or crisis of a disease. 
(6) Another, and probably the correct, form 
of acne. 4. [.cap.} In :oo/., a genus of land- 
shells. Hartnuinn, 1821. 
acmite, akmite (ak'mit), . [< Gr. d/c/^, a 
point, + -ite%. } A mineral of a brownish-black 
or reddish-brown color, isomorphous with au- 
gite, consisting of bisilicate of iron, sesquioxid 
of iron, soda, and alumina : so called from the 
form of its crystals. It is found in Norway, and 
also in Transylvania. Also spelled achmite. 
3. Something given or done in return for a acne (ak'ne), n. [NL., prob. orig. a misprint 
favor. Smollett. 4. In law : (a) The certificate 
of a public officer that an instrument was 
acknowledged before him by the person who 
executed it. (6) The act of so acknowledging 
execution. 5. In com., a receipt. 
Also spelled acknowledgement. 
Acknowledgment money, in England, money paid ac- 
cording to the customs of some manors by copyhold ten- 
ants on the death of the lord of the manor. = Syn. 1. Ad- 
mission, recognition, acceptance, indorsement, thanks. 
(being a book-word) for acme, < Gr. aniiti, a 
point: see acme.} An eruption occurring most 
frequently on the face, and on the shoulders 
and chest, about the period of puberty, it is a 
follicular or perifollicular inflammation of the sebaceous 
glands, resulting in the formation of comedo-bearing pap- 
ules, which often pass into pustules. The so-called acne 
roxacea is a hyperemia of the face combined with more or 
less acne, 
acnestis (ak-nes'tis), n. ; pi. acnestides (-ti-dez). 
To admit or profess a knowledge of; avow to ack-pirate (ak'pi-rat), n. ' [<<*-, of unknown [ NL -> < G r - *WTif, the spine or backbone of 
be within one's knowledge or apprehension; origin, + pirate.} Same as ackman. quadrupeds, < d- priv. + tcvt/ardf, scratched, < 
own to be real or true; recognize the exist- aclastic (a-klas'tik), a. [< Gr. aiAacrof, un- a", scratch, scrape.] That part of the spine 
ence, truth, or fact of : as, to acknowledge God, broken (< d- priv. + K/Uzorof, verbal adj. of in quadrupeds which extends from between the 
or the existence of or belief in a God ; to acknow- "Metv, break), + -ic.} In nat. philos., not refract- shoulder-blades to the loins, and which the ani- 
ledge the rights of a claimant. ing: applied to substances which do not refract ma ' cannot reach to scratch. 
He that aclmowledgeth the Son hath the Father also tlie rav8 of ^gh* passing through them. N. E. D. acnodal (ak-no'dal), a. Of or pertaining to an 
i John ii. 2i. acleidian (a-kll'di-an), a. See aclidian. acnode. Sahnmn. 
The Komans that erected a temple to Fortune, ackmw- acl l d (ak'lid), n. "A gastropod of the family acnode (ak'nod), n. [Irreg. < L. acus, a needle, 
leiir/eil therein, though in a blinder way, somewhat of di- AclidcK. + nodus, a node.] In math., a double point 
belonging to a curve, but 
separated from other real 
points of the curve. 
AcocephalllS (ak-o-sef'a- 
lus), n. [NL., < L. acii's, 
vf ">ty. Sir T. Browne, Rel'igio Medici, i. 18. 
The influence attributed to Cecrops . . . indicates that 
Athens was acknowledged as the head of this confederacy. 
Thirlwall, Hist. Greece, xi. 
tropods typified by the genus Aclis, with a much- 
T , w a muc- 
i express or manifest perception or appre- curved minute odontophore, densely hirsute, 
i ot ive evidence of 
ciation of; give evidence of recognizing or 
realizing : as, to acknowledge an acquaintance 
by bowing; to acknowledge a favor or one's 
faults. 
I acknowledged my sin unto thee. 
confess my transgressions. Ps. xxxii 
They his gifts acknowledged none. 
.Milton, v. I,., xi. (ili 
These were written with such submissions and profes- 
sions of his patronage, as I had never seen any more ac- 
Imoieltdn/itii. Erelyn, Diary, Aug. Is, lK7:i. 
) v 'th what queenly dignity . . . did the great Zenobia 
acknowledge the greetings of her people ! 
IP. Ware, Zenobia, I. 87. 
with simple uncinate teeth and a rimate tur- 
reted shell. Two genera, Aclis and Hemiaclis, 
are represented by four species in Norway. 
aclide (ak'lid), n. [< L. aclis (aclid-), also 
I said, I will spelled aclys : see aclis.} Same as aclis, 1. 
aclides, . Plural of aclis. 
aclidian (a-kli'di-an), a. [< Gr. d- priv. + K/ie/r Acnodal mi 
(K/l/rf-), a key, the clavicle.] In zool., deficient 
in or characterized by the absence of clavicles. 
Also spelled acleidian. 
aclinic (a-klin'ik), a. [< Gr. an^ivr/f, not bend- 
ing to either side, < d- priv. + Ktivtiv, incline, 
lean, = E. lean' 1 .] Having no inclination. 
needle, +Gr./ci 
A genus of homopterous 
hemipterous insects, of 
the family .Tassida; or Tet- 
titftitida', having a boat- 
shaped form, a coarse sur- 
face, shovel-shaped vertex 
with a thick, smooth mar- 
gin, and thick wing-covers with strong veins. 
.1. nereo*n is a pale-yellowish species, } of an inch long, 
deckled with brown, and with angular whitish lines, In- 
habiting Kin-ope and North America. 
Acochlides (a-kpk' li-dez), n. pi. [NL. (F. 
MOoMidM), ^ Gr. d- priv. + /o^X/f (ra^5-), dim. 
