CLA- 



53 



CLI- 



kytos, hollow.] A soft, much vacuo- 

 lated, very variable cell in areolar 

 tissue (phys.). 



claspers (klas'perz) n. plu. [M.E. 

 claspen, to hold.] Rod-like pro- 

 cesses on the pelvic fins of certain 

 male elasmobranchs ; any modifica- 

 tion of an organ or part to enable 

 the two sexes to clasp one another 

 (zoo/.) ; tendrils or climbing off- 

 shoots (bot.). 



clathrate (klath'rat) a. [Gk. kleihra, 

 a lattice.] Lattice-like (biol.). 



claustrum (klos'triim) n. [L. claus- 

 trum, a bar.] In the cerebral 

 hemispheres, a thin layer of grey 

 substance lateral to the external 

 capsule, bounding the lentiform 

 nucleus^ (anat.). 



clava (kla'va) n. [L. clava, a club.] 

 The knob-like end of the antennae 

 of certain insects (zool.) ; the elon- 

 gated swelling at the end of the 

 fasciculus gracilis (anat.). 



clavate (klav'at) a. [L. clava, a club.] 

 Club-shaped ; thickened at one end 



clavicle (klav'lkl) n. [L. clavis, a key.] 

 The bone forming the anterior 

 portion of the shoulder girdle 

 (anat.) ; in animals, ventral. 



claviculariuin (klavik'ula'rium) n. [L. 

 clavis, a key.] The epiplastron of 

 Chelonia, probably corresponding 

 to the clavicles of other forms (zool.}. 



clavula (klav'ula) n. [L. clava, a 

 club.] A monactinal modification 

 of a triaxon spicule ; one of the 

 minute ciliated spines on the 

 fascicles of Spatangidae (zool.) ; the 

 clavate sporophore of certain Fungi 

 (bot.). 



clavus (kla'vus) n. [L. clavus, a nail.] 

 The part of an elytron lying next 

 to the scutellum in Hemiptera 

 (tool.). 



claw (klo) n. [A.S. clawu, a claw.] 

 The stalk of a petal (bot.) ; a sharp 

 curved nail on a finger or toe ; the 

 forceps of certain crustaceans ; a 

 curved process on the limbs of 

 insects (zool.). 



clearing foot, the filamentous pro- 

 cess of the exopodite of the second 

 maxilla in the Phyllocarida (zool.). 



cleavage (kle'vaj) n. [A.S. cleofan, 

 to cut.] The series of karyo- 



kinetic divisions which change the 

 egg into a multicellular embryo 

 (cyt.). 



cleavage nucleus, the nucleus of the 

 fertilized egg, produced by the 

 orderly and intimate union of the 

 male and female pronuclei (cyt.). 



cleistocarp (kli'stokarp) n. [Gk. kleis- 

 tos, closed ; karpos, a fruit.] Cleisto- 

 thecium, which see. 



cleistocarpous (kli'stokar'pus) a. [Gk. 

 kleistos, closed ; karpos, a fruit.] 

 AppL mosses with non-operculate 

 capsules (bot.). 



cleistogamous (kllstog'amus) a. [Gk. 

 kleistos, closed ; gamos, marriage.] 

 Pert, or possessed of characteristics 

 of cleistogamy (bot.). 



cleistogamy (kli'stog'aml) n. [Gk. 

 kleistos, closed ; gamos, marriage.] 

 State of having small inconspicuous 

 flowers which are self-fertilizing and 

 do not open ; fertilization without 

 opening (bot.). 



cleistogene (kffstojen) n. [Gk. kleis- 

 tos, closed ; genos, birth.] A plant 

 with cleistogamous flowers (bot.). 



cleistothecium (kll'stdthe'shmm) n. 

 [Gk. kleistos, closed ; theke, a box.] 

 An ascocarp which remains closed 

 and produces its spores internally 

 (bot.). 



cleithrum (klr'thrum) n. [Gk. klei- 

 thron, a key.] The pair of additional 

 clavicles in Stegocephalia (pal.) ; 

 the clavicular element of the pectoral 

 girdle in some fishes (zool.). 



clinandrium (klinan'drium) n. [Gk. 

 kline, bed ; aner, a man.] A cavity 

 in the "column" between the 

 anthers in Orchids (bot.). 



clinidium (klinid'ium) n. [Gk. kline, 

 a bed.] A filament in a pycnidium 

 which produces spores (bot.). 



clinosporangium (kli'nosporan'jlum) 

 n. [Gk. kline, bed ; sporos, seed ; 

 anggeion, a vessel.] Pycnidium, 

 which see. 



clitellum (kliteTum) n. [L. clitellae, 

 a pack-saddle.] The saddle or 

 swollen glandular portion of the 

 skin of certain worms (zool.). 



clitoris (klit'oris) n. [Gk. kleiein, to 

 enclose.] An erectile organ, homo- 

 logous with the penis, at the upper 

 part of the vulva (anat.). 



clivus (kll'vus) n. [L. clivus, a hill.] 



