SEU- 



290 



SEX- 



serrate-dentate, with serrate edges 

 themselves toothed (bot.). 



serratiform (serat'iform) a. [L. serra, 

 saw ; forma, shape.] Like a saw. 



serration (sera'shun) n. [L. serra, 

 saw.] Saw-like formation. 



serratirostral (sgrat'iros'tral) a. [L. 

 serra, saw ; rostrum, beak.] Appl. 

 Birds with serrate bill. 



serratodenticulate(serat'odentik'ulat) 

 a, [L. serra, saw ; dens, tooth.] 

 With many-toothed serrations (bot.). 



serrature (seYatur) n. [L. serra, 

 saw.] A saw-like notch. 



serratus magnus, a muscle stretch- 

 ing from upper ribs to scapula 

 (anat.). 



serrlferous (serlf'Srus) a. [L. serra, 

 saw ; ferre, to carry.] Furnished 

 with a saw-like organ or part. 



serriform (seYiform) a. [L. serra, 

 saw ; forma, shape.] Like a saw. 



serriped (seYiped) a. [L. serra, saw ; 

 pes, foot.] With notched feet. 



serrula (ser'ula) n. [L. serrula, a 

 small saw.] A comb-like ridge 

 on the chelicerae of some Arachnids 

 (zool.). 



serrulate (seYulat) a. [L. serrula, 

 a small saw.] Like a finely-notched 

 saw. 



serrulation (ser'ula'shun) n. [L. 

 serrula, a small saw.] A small 

 notch. 



Sertoli cells, enlarged lining epi- 

 thelium-cells connected with groups 

 of developing spermatozoa in testes 

 (anat.}. 



serum (se'rum) n. [L. serum, serum.] 

 The thin watery fluid which separ- 

 ates from the blood on coagulation, 

 it contains proteins, extractives, 

 and salts (phys.). 



serum albumin, serum globulin, 

 two of the proteins of serum 

 (phys.). 



sesamoid (ses'amoid) a. [Gk. sesa- 

 mon, sesame ; eidos, form.] Appl. 

 a bone developed within a tendon 

 and near a joint, as the patella, 

 the radial or ulnar sesamoid 

 (anat.). 



sesamoidal (seVamoidal) a. [L. 

 sesamon, sesame ; eidos, form.] 

 Pert, a sesamoid bone. 



sessile (seVll) a. [L. sedere, to sit.] 

 Sitting directly on the base with- 



out support, stalk, or peduncle ; 

 stationary, as opp. free-living or 

 motile (zool.). 



seta (se'ta) n. [L. seta, a bristle.] 

 Any bristle-like structure ; the 

 chaeta of Chaetopods (zool). 



setaceous (sfita'shus) a. [L. seta, 

 a bristle.] Bristle-like ; set with 

 bristles. 



setifprm (se'tifbrm) a. [L. seta, a 

 bristle ; forma, shape.] Bristle- 

 shaped ; appl. teeth when very fine 

 and closely set. 



setigerous (setij'erus) a. [L. seta, 

 bristle ; gerere, to bear.] Setif- 

 erous ; setiparous ; bristle-bearing. 



setigerous sac, a sac, in which is 

 lodged a bundle of setae, formed 

 by an invagination of the epi- 

 dermis in the parapodium of 

 Chaetopods (zool.). 



setirostral (se'tiros'tral) a. [L. seta, 

 bristle ; rostrum, beak.] Appl. 

 Birds with beak bristles. 



setobranchia (se'tobrang'kia) n. [L. 

 seta, bristle ; Gk. brangchia, gills.] 

 A tuft of setae attached to the 

 gills of certain Decapods (zool.). 



setose (se'tos) a. [L. seta, bristle.] 

 Set with bristles ; bristly. 



setula (sgt'ula) n. {Dim. from L. 

 seta, bristle.] A setule ; a thread- 

 like or hair-like bristle. 



setuliform (se"tu'lif6rm) a. [L. seta, 

 bristle ; forma, shape.] Thread- 

 like ; like a setula or fine bristle. 



setulose (set'ulos) a. [L. seta, bristle.] 

 Set with small bristles. 



sex (sks) n. [L. sexus, sex.] The 

 sum of characteristics, structures, 

 functions, by which an animal or 

 plant is classed as male or female. 



sexdigitate (seksdij'itat) a. [L. sex, 

 six ; digitus, a finger.] With six 

 fingers or toes (zool). 



sexfld (sgks'ffd) a. [L. st 

 findere, to cleave.] Cleft i 

 as a calyx (bot.). 



sexfoil (sSks'foil) a. [L. sex, six ; 

 folium, leaf.] A group of six leaves 

 or leaflets round one axis (bot.). 



sex limited inheritance, inherit- 

 ance of characteristics limited by 

 the fact that some are predomin- 

 antlymale andothers predominantly 

 female (biol.). 



sexual (sek'siial) a. [L. sexus, sex.] 



sex, six ; 

 into six, 



