Otidae 
Otidae(6'ti-ilc)../<f. [NL.,<OC-T--W'.] Same 
us Otiiliiln: 
Otides, w . Plural of H/I'.V. 
Otidia, . Plural of otiiliiiHi. 
otidial (o-tid'i-al), n. [< olitliiim + -?.] Of or 
pertaining to an otidium or the auditory organ 
of a mollusk. 
Otididae(<;>-ti<l'i-d6), i>l. [NL., <o//*( w,/-) + 
-/((.] A family of pressirostral grallatorial 
birds, typified by the genus Otix; the ImstanU. 
They are" cnaradriomorphlf " r plover-like, and especially 
related to such forms as the tr.dicnrmidir <ir thirK-knecs 
(having holorllinal nostrils), and also exhibit some analogy 
to, If not affinity with, the gallinaceous birds. The cur- 
sorial feet are large and stout, and reticulaUnl, with three 
short stout toes ; the honk is short, stout, and compara- 
tively vaultiil. The Itiiilvla are all of the Old World, and 
dispersed from their African center of distribution into 
Kmiipe, Asia, and Australia. There are about :15 species, 
of several modern genera, ranging in size from that of a 
turkey to tlwtof a grouse. They lly well, ami run with great 
celerity. Their food is chiefly vegetable. See bustard. 
otidiform (o-tid'i-form), a. [< NL. Otix ( <>/i,l-) 
+ L. forma. ] Resembling or related to the bus- 
tanls; otidine. 
Otidinse (6-ti-di'ne), n. pi. [NL., < Oils (Odd-) 
+ -in(p.~\ The bustards as a subfamily of some 
other family, or as the only subfamily of O/iili- 
dte. 
otidine (6'ti-din), a. Of or pertaining to the 
Otiiliiui' or Otiiliil/r. 
Otidiphaps (6-tid'i-faps), n. [NL., < Gr. arlf 
(urn)-), a kind of bustard (see Otis), + (pdtl>, a 
wild pigeon.] A remarkable genus of Papuan 
pigeons, probably belonging to the ('olumoidee, 
but not related to the ground-pigeons of the 
genus Gourd. The tail-feathers are 20, an unusual 
number, and the plumage is green, blue, and chestnut, 
with metallic sheen on the neck. They are of large size, 
about 18 inches long, live in the woods, and feed on fruits. 
0. nobilis is the best-known species. 
otidium (o-tid'i-um), n. ; pi. otidia (-a). [NL., 
< Gr. oif (ur-), ear, + dim. suffix -ititov.'] The 
typical ear of a mollusk; the form of otocyst 
or auditory organ which occurs in the Mol- 
lllSI'll. 
Otinidae (o-tin'i-de), n. pi. [NL., < Otina (the 
typical genus) 4- -trfa;.] A small family of 
aquatic pulmonate gastropods, typified by the 
genus Otina ; the ear-snails. They are of small size, 
with very short tentacles, foot grooved for looping, and 
mouth vertically cleft ; they live on rocks of the sea-shore. 
Sometimes called dwarf-ears. 
Otion (6'ti-on), n. [NL., < Gr. oriov, a little ear, 
an ear, a kind of shell-fish, dim. of oif (wr-), ear : 
see earl.] i. A genus of thoracic cirripeds 
or barnacles: a synonym of Conchoderma. 2. 
[/. c.] A barnacle of this genus. 
We also find otioiis attached to their surface. 
ftirifr, Regne Anini. (trans. 1849), p. SJti. 
Otiorhynchidae(6''ti-o-ring'ki-de), n.pl. [NL. 
(Shuckard, 1840), < Otiorhynchus + -irfo;.] An 
important family of rhynchophorous Coleop- 
tera, or snout-beetles, typified by the genus 
Otiorlii/iirlniK. The elytra have a strong fold on the 
inner face, the male pygidium is divided, the tarsi are 
usually dilated, and brushy underneath, and the mandi- 
bles have a deciduous piece which falls oil after the trans- 
formation from pupa to imago, leaving a scar. It is a 
large and wide-spread group, containing many noxious 
weevils, as Epittrrus imbricates, the imbricated snout- 
beetle, and AramigvifuUm, or Fuller's rose-beetle. (See 
cut under Epuxerus.) Many of the tropical species are 
highly ornamental, as Entimus imperialis. Seecut under 
diamond-beetle. 
Otiorhynchinae (6ti-o-ring-ki'ne), n.pl. [NL., 
< Oliiirhi/iu'liiis + -!tt<e.] 1. The Otiorhynchida' 
rated as a subfamily of Curculionida". 2. A 
restricted subfamily of Otiorhynchida!, contain- 
ing the more typical forms of that family. Also 
otiorhi/nchiiti. See cut under Epicterus. 
otiorhynchine (6"ti-o-ring'kin), . Pertaining 
to tin 1 Otiiirhyiichinie, or having their charac- 
ters. 
Otiorhynchus (6'ti-o-ring'kus), n. [NL. (Ger- 
mar, 1824), < Gr. uriov, dim. of oi'f, ear, + piy- 
X<x;, snout.] A genus of snout-beetles, typical 
of the family Otiorhynehida; having the meta- 
stenial side pieces entirely concealed by the ely- 
tra, the suture obliterated, and the hind tibite 
with two short fixed spurs. There are nearly 500 
species, mostly European and Asiatic. The five which oc- 
cur in North America are common to that continent and 
to Europe. 
Otiose (6'shi-os), n. [= OF. ocins, oci< x. /,Vx 
= Sp. Pg. ocioso = It. o'ioso, < L. otiosus, hav- 
ing leisure or ease, at leisure, < otium, leisure, 
ease; prob. not related to ease: see ease. Cf. 
negotiate, etc.] 1. Being at rest or ease; not 
at work; unemployed; inactive; idle. 
Ndengei, the dull and ntinse supreme deity [in the Fiji 
Islands], had his shrine or incarnation in the serpent. 
E. B. Tylor, Prim. Culture, II. 211. 
4175 
2. Made, done, or performed in a leisurely, 
half-hearted way; perfunctory: negligent; care- 
less: hence, ineffective; vain: futile; to no pur- 
pose. 
If thinking nlioiit payment of the debt means merely 
an utiiaf contemplation of a possible event, the proposi- 
tion may be true, but Is little to the pur)H>se. 
7'. //. Green, Prolegomena to Ethics, 1 150. 
Tin- last dramatic possibility of the piece . . . is lost by 
the addition of two otiote acts, with a commonplace end- 
ing, once more drowned in platitude and priggfshness. 
Atheiunim, No. 3084, p. 764. 
otiosity (6-shi-os'i-ti), n. [= OF. ociogite, 
uliiinitr = Sp. ociiisiilnil Pg. ocioxidadc = It. 
<i:innitfi; as otiose + -ity.] 1. The state or qual- 
ity of being otiose or of having nothing to do ; 
ease; relief from labor; idleness. 
Joseph Seilley then led a life of dignified otiotity, such 
as became a person of his eminence. 
Thackeray, Vanity Fair, Ix. 
2. Perf unctoriness ; easy negligence ; careless- 
ness; ineffectiveness; futility. 
Otis (d'tis), n.; pi. otides (6'ti-dez). [NL., < L. 
otin, < Gr. uric, a kind of bustard with long ear- 
feathers, < oiif (UT-), ear: seeear 1 .] 1. The ear 
of a vessel, often ornamental. Compare ansa. 
2. [crt/>.] In ornith., the leading genus of Oti- 
didte, or bustards. It was formerly coextensive with 
the family, but is now restricted to such species as the great 
bustard, Ofw tarda. See cut under bitttard. 
otitis (o-ti'tis), n. [NL., < Gr. we (<""-), par, + 
-tto.] Inflammation of the ear. otitis externa, 
inflammation of the external ear. Otitis Interna, in- 
flammation of the internal ear. Otitis media, inflam- 
mation of the middle ear, or tympanum. 
oto (o'to), H. [Central Amer.] The plant Co/o- 
easia antiqiiorum. 
otoba-butter (6-to'ba-but'er), n. A fatty sub- 
stance said to be obtained from the fruit of 
Myristica Otoba. It is nearly colorless, and smells 
like nutmegs when fresh, but has a disagreeable odor in 
the melted state. 
Otoconia, . Plural of otoeonium. 
otoconial (6-to-ko'ni-al), a. [< NL. otoeonium 
+ -al.'] Pertaining to or consisting of an oto- 
eonium or otoconia: as, otoconial particles. 
otoconite (o-tok'o-nit), n. [< NL. otoeonium 
+ -i'te 2 .] An otoeonium ; a small otolith or cal- 
careous concretion of the labyrinth of the ear. 
=Syn. See otolith. 
Otoeonium (6-to-ko'ni-um), n. ; pi. otoconia (-&). 
[NL., < Gr. oi'f (UT-), ear, + /<6vif, dust.] One 
of the small otoliths, or gritty particles in the 
membranous labyrinth: used practically only 
in the plural. =Syn. Seeotali/h. 
Otocorys (o-tok'o-ris), n. [NL., < Gr. ovf (or-), 
ear, -t- Kupvf, a helmet.] A genus of Alaudidai; 
the horned larks: a synonym of Eremophila. 
The name is regularly used' by th'ose who hold that Ere- 
mophila in ornithology Is untenable because of the prior 
Eremophilus in ichthyology. Also, improperly, Otocoris. 
See cut under Eremophila. 
Otocrane (6'to-kran), . [< Gr. oi'f (wr-), ear, 
+ Kpaviov, skull.] The bony structure of the 
middle and inner ear of a vertebrate, contain- 
ing the essential parts of the organ of hear- 
ing. It consists of the otic or periotic bones more or less 
completely coalesced into a single petrosal or petromas- 
toid bone. In man the otocrane Is the petromastoid, con- 
sisting of the petrous and mastoid parts of the temporal 
bone fused together. Also otocranium. See cuU under 
periotic and tympanic. 
otocrania. . Plural of otocranium. 
otocranial (6-to-kra'ni-al), a. [< otocrane + 
-in/.] Of or pertaining to the otocrane; otocran- 
ic; otic or periotic, as a bone or set of bones. 
otocranic (6-to-kran'ik), a. [(otocrane + -ic.] 
Of or pertaining to the otoerane : as, otocranic 
elements. Coues. 
Otocranium (6-to-kra'ni-um), i. ; pi. otocrania 
(-&). [NL. : see otocrane .] Same as otocrane. 
Otbcyon (o-tos'i-on), n. [NL., < Gr. oi-f (UT-), 
ear, + K^UV, dog, = E. hound.] 1. A remarkable 
genus of African foxes of the alopecoid or vul- 
pine series of the family Canida;, typical of the 
subfamily Otocyonina?. They have 46 or 48 teeth 
(more than any other known heterodont mammal); cra- 
nial characters as in Fennecug, but the hinder border of 
the lower jaw with a peculiarly expansive process ; audi- 
tory bullse and ears very large ; vertebrae 52 ; limbs long ; 
and toes 5-4, as is usual in Canidtr. There is but one 
species, 0. meyaloti*. of South Africa, iltyalatis is a syn- 
onym. 
2. [1. c.] Any animal of this genus; a rnega- 
lote. 
Otocyoninae (o-tos'i-o-m'ne), n. pi. [NL., < 
otiK-i/oii + -i>nr."\ A subfamily of Canidte, rep- 
resented by the genus Otocy'on. Also called 
Otocyonine (6-to-si'o-nin), a. Of or pertaining 
to the Ottiri/oniiHT. 
Otocyst (o'to-sist), n. [< Gr. oi? (<>-), ear, + 
M'ffrir, bladder (cyst): see cyst.] In :ool., an 
otology 
auditory vesicle : :iny cavity or cyst which con- 
t'linsilifcssfiiiiiil pints of ;m di-({iiii of hearing: 
especially, llie smditury vesicle or capsule ,,f 
siMi.e nf the Ini-i-rlihrillil, 'il'tell cnlltailiilli,' otii- 
lithg, and subservient to the function of audi- 
tion. In Hyiirnzna, otocysts are one of the several kinds 
of marginal bodies situated in the margin of the dink 
between tentacles, and containing otolithic concretions 
and hair-cells. See cuts under Appendicularia and litjw- 
eyit. 
Otocystic (6-to-sis'tik), a. [< otocyxt + -i<\ \ 
I'ertiiining to an ninc\ it, 
otodynia (6-Io-din'i-ji), . [NL., < Gr. oic(wr-), 
t lie ear. + ''"',. | lain. | Pain in the ear. 
otographical (o-to-graf 'i-kal), a. [< ototini]>>i-i/ 
+ -if-n/.\ Of or pertaining to otography. 
OtOgraphy (o-tog'ra-fi), . [< Gr. <tv< (UT-), ear, 
+ -ypa$ia, < yp&peiv, write.] The descriptive 
anatomy of the ear. 
Otogyps (6'to-jips), n. [NL., < Gr. m'r (<>-), 
ear, T yi"<l>, vulture.] A genus of Old WmM 
vultures of the family f'alconidte and the sub- 
Eared Vulture {Otofyfi 
family Yulturinee, having ear-like flaps of skin ; 
the eared vultures. There are several species, as the 
African 0. auriculari*, the Nubian 0. nubicus, and the In- 
dian or Pondicherry 0. ealvus. 
otolite (6'to-lit), n. [< Gr. ot>f (OT-), ear, + 
?./Sof, stone (see -lite).] Same as otolith. 
Otolith (6'to-lith), n. [< Gr. ot'f (IJT-), ear, + X/'6of, 
stone.] 1. A calcareous concretion within the 
membranous labyrinth of the ear. In fishes and 
fish-like vertebrates they are sometimes of great size. In 
higher animals otoliths are generally wanting or reduced 
to small particles or ear-dust. (See utocoirittm.) Among 
some common fishes the otolith decreases in size in the fol- 
lowing order: cod, hake, haddock, whiting, conger, turbot, 
sole, gurnard, smelt and trout. The concretions differ 
much in shape. In the conger the otolith is shaped like a 
sole, 11 inches long, inch wide, and is thin and glassy. 
In the cod it is of the size of a horse-bean, and is curved 
on itself. The ear-stones of the American sheepshead are 
shaped like a tamarind-seed, and look like pieces of milky 
quartz. They are often carried in the pocket as "lucky 
stones." 
2. One of the proper otic bones of some ani- 
mals, as certain fishes ; an otosteon. See cuts 
under Esox and Python. =syn. Otoiahs, Otottea, oto- 
conia, and Otvtonite* are all concretions in the inmost ear : 
the two first-mentioned words are by some restricted to 
the large solid "ear-stones" of lower animals, while the 
latter two designate the small ones or very fine "ear- 
dust" of higher animals. They have properly no part In 
the bony structure of the ear, but a vibratory or concug- 
sive function In audition. But otolith and otosteon are 
sometimes applied to the internal ear-bones of fishes. 
otolithic (6-to-lith'ik),. [< otolith + -<.] 1. 
Of or pertaining to an otolith ; otosteal : as, an 
otolithic concretion. 2. Containing otoliths; 
lithocystic : as, an otolithic capsule or lithocyst. 
Also otolitic. 
Otolithic sac, in Hydrozoa, a lithocyst. 
Otolithus (o-tol'i-thus), . [NL., < Gr. off (irr-). 
ear, + /.iffoir', stone.] A genus of scisenoid fishes ; 
weakfish: now commonly called Cynoncimi. 
Otolitic (6-to-lit'ik), a. [< otolite + -ic.] Same 
as otol itl<i<: 
Otological(o-to-loj'i-kal).n. [<.oMog-y + -ic-L~\ 
Of or pertaining to otology. 
Otologist (o-tol'o-jist), n. [< otoloff-y + -int.'} 
One who is versed in otology, especially in it* 
medical and surgical aspects: an aurist. 
otology (o-tol'o-ji), n. [< Gr. oi'f (wr-), ear. 
-t- ->o-,ia, < teyeiv, speak: see -oloay.'] That 
branch of science which deals with the human 
ear, its anatomy and functions, in health and 
disease. 
