CYT- 



69 



DEC- 



cytozoic (sftozolk) a. [Gk. kytos, 

 hollow ; zoon, an animal.] Appl. 

 the trophozoite of a sporozoon when 

 situated within a cell (zool.}. 



cytula (sit'ula) n. [Gk. kytos, hollow.] 

 The fertilized ovum or parent cell 



D 



dacryon (dak'rlon) n. [Gk. dakryon, 

 tear.] The point of junction of the 

 anterior border of the lacrimal with 

 the frontal (anat.}. 



dactyl (dak'til) n. [Gk. daktylos, 

 finger.] A digit or finger (anat.}. 



dactylar (dak'tilar) a. [Gk. daktylos, 

 finger.] Pert, finger or digit (anat.}. 



dactylopodite (dak'tllop'odlt) n. [Gk. 

 daktylos, finger ; pous, foot.] The 

 distal joint in certain limbs in the 

 Crustaceans, especially the thoracic 

 limbs (zool.}. 



dactylopore (dak'tllopor') n. [Gk. 

 daktylos, finger ; poros, exit.] The 

 opening in the skeleton of the 

 Milleporina through which a dactyl- 

 ozooid protruded when alive (zool.'). 



dactylopterous (dak'tllop'te'rus) a. 

 [Gk. daktylos, finger ; pteron, wing.] 

 With the anterior rays of the 

 pectoral fins more or less free 

 (zool.}. 



dactylozooid (dak'tilozo'oid) n. [Gk. 

 daktylos, finger ; zoon, animal ; 

 eidos, resemblance.] A hydroid 

 modified for the special function of 

 catching prey, it may be long, with 

 tentacles or with short knobs, with 

 or without a mouth (zool.). 



dactylus (dak'tilus) n. [Gk. daktylos, 

 finger.] Part of the tarsus of an 

 insect (zool.}. 



dart (dart) n. [O.F. dart, dagger.] 

 Anything resembling a dart, appl. 

 crystalline structure in Molluscs 

 (zool.}. 



dart sac, a small sac containing a 

 dart of limey material attached to 

 the vagina near its orifice in Gastro- 

 pods (zool.}. 



dartoid (dar'toid) a. [Gk. dartos, 

 flayed.] Pert, the dartos (anat.}. 



dartos (dar'tSs) n. [Gk. dartos, 

 flayed.] A thin layer of non-striped 



muscle fibres around the base of 

 the scrotum (anat.}. 



Darwinian tubercle, theslightprom- 

 inence on the helix near the point 

 where it bends downwards (anat.}. 



Darwinism (Dar'wlnlzm) n. [Dar- 

 win.] The theory of the origin of 

 species by natural selection working 

 on the slight variations that occur, 

 thereby selecting those fittest to 

 survive (biol.}. 



dasypaedes (da'sipe'dez) n. phi. [jGk. 

 dasys, hairy ; pats, child.] Birds 

 whose young are downy at hatching 

 (zool.}. 



daughter (d6'ter) n. [A.S. dohtor, 

 daughter.] Offspring of the first 

 generation with no reference to sex, 

 as daughter-cell, daughter-nucleus, 

 etc. (biol.}. 



deamlnation (deam'inashun) n. [L. 

 de, down ; Gk. amtnoniacum, a 

 resinous gum.] The conversion of 

 ammonium salts into urea, partly 

 accomplished in the liver (phys.}. 



death (deth) n. [M.E. deth, death.] 

 The complete and permanent cessa- 

 tion of all vital functions in any 

 organism (biol.}. 



death-point, the temperature above 

 or below which micro-organisms 

 cannot exist (biol.}. 



decalcify (dekal'sifl) v. [L. de, away ; 

 calx, lime.] To treat with acids for 

 the removal of the calcareous part 

 (anat.}. 



decamerous (dgkam'griis) a. [Gk. 

 deka, ten ; meros, part.] With the 

 various parts arranged in tens (bot.}. 



decapod (dek'apod) a. [Gk. deka, 

 ten ; pous, foot.] In Crustacea, 

 with five pairs of legs on the 

 thorax ; in Cephalopods, with ten 

 arms (zool.}. 



decapodlform (dek'apod'iform) a. [Gk. 

 deka, ten ; pous, foot ; L. forma, 

 shape.] Resembling a decapod, 

 usually said of insect larvae (zool.}. 



decemfid (dgsfim'fid) a. [L. decent, 

 ten ; findere, to cleave.] Cut into 

 ten segments (bot.}. 



decemfoliate (des'gmfo'liat) a. [L. 

 decent, ten ; folium, leaf.] Ten- 

 leaved (bot.}. 



decemjugat (deVmjoo'gat) a. [L. 

 decem, ten ; jugare, to join.] With 

 ten pairs of leaflets (bot.}. 



