ACI 



distinguishing colours ; colour 

 blindness. 



acicular, a., as-i&ul-ar (L. dcus, 

 a needle, acicula, a little needle), 

 in shape like a needle ; having 

 sharp points like needles : acic- 

 ulus, n., as'ik'-ul'us, in bot., a 

 strong bristle ; a little spike. 



acinaciform, a., ds'in-as't-fdrm 

 (L. acmdces, a short sword, a 

 sabre ; forma, shape), shaped like 

 a sabre or scimitar : acinacifolious, 

 a., as'-in-as-i-fdl'-i'tis (L. folium, 

 a leaf), having leaves shaped like a 

 sabre or scimitar. 



acinus, n., ds'-m-us (L. actnus, a 

 berry, a stone or seed in a berry, 

 acini plu.), in bot., one of the 

 pulpy drupels forming the fruit 

 of the raspberry or bramble ; in 

 surg., small granulations of the 

 liver and similar bodies : acini- 

 form, a., ds-m'-i-form (L. forma, 

 shape), having the form or colour of 

 a clustered fruit, as the raspberry. 



acne, n., dk'ne (Gr. a, intensive; 

 kneo, I scrape or gnaw), an erup- 

 tion of hard inflamed tubercles 

 often appearing in youth, gener- 

 ally on the neck, face, shoulders, 

 and breast, sometimes lasting for 

 years so called in allusion to 

 their appearance : acne rosacea, 

 rdZ'ds'e'd (L. rosdceus, of or 

 pert, to roses), the ruddy uneven 

 nose of some who indulge in the 

 excessive use of alcoholic liquors. 



aconitum napellus, ak-on-lt'-um 

 ndp'U f 'lus (Gr. akonilon, the 

 poisonous herb monk's-hood, ak- 

 ontion, a small dart from akon, 

 a dart, as darts were dipt in its 

 poisonous juice ; L. napellus, 

 diminutive of ndpus, a turnip), 

 the plant monk's-hood, friar's-cap, 

 wolfs -bane, or helmet -flower, 

 which contains a narcotic alkaloid, 

 one of the most deadly poisons 

 known : aconite, n., ak'-on-lt, the 

 common name for aconitum napel- 

 lus : aconitine, or aconitia, ak-on' 

 U'in, or -isUi-d, the alkaloid of ac- 

 onite forming its active principle. 



6 ACR 



Acontotheci, n. plu., tik-tin-ttitU 

 %'Si (Gr. akon, unwilling; tithemi, 

 I put or place), a family of intest- 

 inal worms. 



Acorns, n., ak'dr-us (L. acorus, 

 Gr. akoros and akoron, the 

 sweet-scented flag), a genus of 

 plants ; the sweet flag, which 

 has an aromatic odour combined 

 with a bitterish acrid taste : 

 Acorus calamus, kdl'-dm-us (L. 

 calamus, a reed), the systematic 

 name of acorus : Acorese, n. 

 plu., dk'dr'-e-e, the sweet flag 

 tribe. 



acotyledon, n., d&8t-tt-Sd'-fa (Gr. 

 a, without; kotuledon, a seed lobe), 

 a plant whose embryos or germs 

 have no seed lobes : acotyledon- 

 ous, a., dk'-ftt'tt-ed'oii'us, having 

 no seed lobes. 



Acrita, n., dk'rit-d (Gr. akr'dos, 

 confused), the lowest division of 

 the animal kingdom, in which 

 the organs are supposed to be 

 combined confusedly with the 

 other parts ; synonym of proto- 

 zoa. 



acrobrya, n. plu., dk'ro-bri'd (Gr. 

 akros, at the highest point ; bruo, 

 I bud forth or germinate), a plant 

 in which the growth is formed by 

 additions in an upward direction ; 

 synonym of acrogens. 



acrocarpi, n.plu.,dk'-rd'kdrp'i (Gr. 

 akros, at the highest point ; kar- 

 pos, fruit), mosses having their 

 fructification terminating the 

 axis: acrocarpous, a., d&rfrkdrp'- 

 us, having the fructification ter- 

 minating the axis. 



acrogens, n. plu., dk'-ro-jZnz (Gr. 

 akros, at the highest point ; 

 gennao, I produce), those plants 

 which increase by growth at the 

 summits or growing points, and 

 whose stems do not materially 

 increase in bulk, as the stems of 

 ferns : acrogenous, a., dk-rddf- 

 %n-us, increasing by growth at 

 the summit or growing point. 



acromium, n., ak-rom'-i-um, also 

 acromion, uk-rom'-l-tin (Gr. 



