ANT- 



18 



AOR- 



antibrachlal (an'tlbra'kial) a. [Gk. 

 anti, against ; L. brachium, arm.] 

 Pert, forearm; appl. fascia, muscles, 

 nerves (anat.). 



antibrachiuni (antibra'kTum), ante- 

 brachium. 



anticlinal (an'tlkll'nal) a. [Gk. anti, 

 against ; klinein, to bend.] Appl. 

 line of division of cells at right 

 angles to the apex (bot.) ; in quad- 

 rupeds, appl. one of the lower 

 thoracic vertebrae with upright 

 spine towards which those on 

 either side incline (zool.). 



anticoagulin (an'tlkoag'tilin) n. [Gk. 

 anti, against ; L. cogere, to drive 

 together.] A substance which 

 prevents the coagulation of drawn 

 blood, as hirudin (phys.). 



anticubital, antecubital. 



antidromy (antid'rom!) n. [Gk. anti, 

 against ; dromos, running.] Condi- 

 tion of spiral phyllotaxy with 

 genetic spiral changing direction 

 after each cycle (bot.). 



antigen (an'tljen) n. [Gk. anti, 

 against; genos, birth.] Appl. sub- 

 stances which, when injected into 

 an animal, cause a series of physio- 

 logico-chemical changes resulting 

 in the formation of antibodies in 

 the blood (phys.). 



antlhellac (an'tihe'liks) n. [Gk. anti, 

 against ; helix, a convolution.] 

 The curved prominence in front 

 of the helix of the ear (anat.). 



antimeres (an'timerz) n. plu. [Gk. 

 anti, against ; meros, part.] A 

 series of equal radial parts of the 

 body of a radially symmetrical 

 animal (zool.). 



antipetalous (an'tipeYalus) a. [Gk. 

 anti, against, opposite ; petalon, 

 petal.] With stamens in front of 

 petals (dot.). 



antipodal (antip'odal) a. [Gk. anti, 

 against ; pous, foot.] Appl. group 

 of three cells at chalazal end of 

 embryo sac (bot.) ; appl. cone of 

 astral rays opposite spindle fibres 

 (cyt.). 



antiseptic (an'ttsep'tik) a. [Gk. anti, 

 against ; sepsis, putrefaction.] A 

 substance which destroys harmful 

 micro-organisms, one of the 

 functions of gastric juice (phys.). 



antispadix (an'tispa'dlks) . [Gk. 



anti, against ; spadix, a palm 

 branch.] A group of four modified 

 tentacles in internal lateral lobes 

 of Nautilus (zool.). 



antisquama (an'tiskwa'ma) n. [Gk. 

 anti, against ; L. squama, scale.] 

 A basal lobe next the squama of 

 insect wing ; the squama alaris or 

 antitegula (zool.). 



antitegula (an'titeg'ula) n. [Gk. anti, 

 against ; L. tegula, tile.] Smaller 

 lobe, nearer the base of wing, than 

 alula (zool.). 



antithrombin (an'tithrom'bm) n. [Gk. 

 anti, against ; thrombos, clot.] A 

 substance formed in the liver 

 which prevents clotting of the 

 blood (phys.). 



antitoxin (an'titok'sin) n. [Gk. anti, 

 against; toxikon, poison for arrows.] 

 A substance which develops as a 

 result of, and subsequently neutral- 

 izes, the injection of a specific 

 poison introduced into the animal 

 body (phys.). 



antitragus (an'titrag'us) n. [Gk. anti, 

 against; tragos, he -goat.] A 

 prominence opposite the tragus 

 of the ear (ana/.). 



antitrochanter (an'tltrokan'te'r) n. 

 [Gk. anti, against ; trochanter, a 

 runner.] An articular surface on 

 the ilium in birds against which 

 the trochanter of the femur plays 

 (zool.). 



antitrppal (antit'ropal) a. [Gk. anti, 

 against ; trepein, to turn.] In- 

 verted ; appl. embryos with radicle 

 directed away from the hilum (bot.). 



antitropous, ant i t ropal. 



antlia (ant'lia) n. [L. antlia, pump.] 

 The spiral suctorial proboscis of 

 the Lepidoptera (zool.). 



antorbital (ant6r'bital) n. [L. ante, 

 before ; orbs, circle.] Situated in 

 front of the orbit (zool.). 



antrum (an'trum) n. [L. antrum, 

 cavity.] A cavity or sinus ; appl. 

 maxillary sinus, and cavity of the 

 pylorus (anat.). 



anurous (anu'rus) a. [Gk. a, without ; 

 oura, tail.] Tailless. 



anus (a'nus) n. [L. anus, anus.] The 

 posterior opening of the alimentary 

 canal (anat.). 



aorta (aorta) n. [Gk. aorte, the great 

 artery.] The great trunk artery- 



