VAG- 



341 



VAS- 



vaginal process, a projecting lamina 

 on the inferior surface of the petrous 

 portion of the temporal ; either of 

 a pair of laminae on the sphenoid 

 (anat.). 



vaginate (vaj'inat) a. [L. vagina, 

 sheath.] Invested as with a sheath 

 (anat.). 



vaginervose (vaj'iner'vos) a. [L. 

 vagus, wandering ; nervus, sinew.] 

 With irregularly-arranged veins 

 (dot.). 



vaginicolous (vaj'imk'dlus) a, [L. 

 vagina, sheath ; colere, to inhabit.] 

 Appl. certain Infusorians which 

 build and inhabit sheaths or cases 

 (nooL\ 



vaginiferous (vaj'imf'erus) a. [L. 

 vagina, sheath ; ferre, to carry.] 

 Vaginate. 



vaginipennate (vaj'inipen'at). a. [L. 

 vagina, sheath ; penna, feather.] 

 Having wings protected by a sheath 

 (zool.). 



vaglnula (vajm'ula) n. [L. vaginula, 

 dim. of vagina, sheath.] A small 

 sheath (zool.} ; a sheath surrounding 

 the basal portion of the sporophyte 

 in Mosses (dot.). 



vagus (va'gus) n. [L. vagus, wander- 

 ing.] The pneumogastric or tenth 

 cranial nerve (anat.). 



vaUecula (valek'ula) n. [L. vallis, 

 valley.] A depression (anat.) ; a 

 groove or depression (dot.). 



vallecular (valelc'ular) a. [L. vallis, 

 valley.] Pert, groove or depres- 

 sion. 



vallecular canal, one of the canals 

 in the cortical tissue of the stem of 

 the Horse-tails (hot.). 



valleculate (valeVulat) a. [L. vallis, 

 valley.] Grooved. 



valval (val'val) a. [L. -vulva, leaf, 

 fold.] Appl. view of a Diatom when 

 one whole valve is next the observer 

 (dot.). 



valvar (val'var), see valval. 



valvate (val'vat) a. [L. valva, fold.] 

 Hinged at the margin only ; meet- 

 ing at the edges ; opening by so- 

 called valves (dot.) ; furnished with 

 valves (zool.). 



valve (valv) n. [L. valva, fold.] 

 Any of the various structures which 

 permit flow in one direction, but 

 are capable of closing the tube or 



vessel and preventing the backward 

 flow (anat.) ; any of the pieces 

 formed by a capsule on dehiscence ; 

 the lid-like structure of certain 

 anthers ; one of the pieces forming 

 the shell of a Diatom (dot.) ; any 

 of the pieces which form the shell 

 in certain Molluscs, Barnacles, etc. ; 

 one of the pieces forming the sheath 

 of the ovipositor in certain Insects 

 (zool.). 



valve of Vleussens (vyii'song), a thin 

 layer of white matter extending 

 between the superior peduncles of 

 the cerebellum (anat.). 



valvelet (valv'lgt) n. [L. valva, fold.] 

 A valvula. 



valvula (val'vula) . [L. valvula, 

 dim. of valva, fold.] A small fold 

 or valve (anat.). 



valvulae conniventes, folds of mem- 

 brane found in the alimentary canal 

 from duodenum to ileum, affording 

 an increased area for secretion and 

 absorption (anat.). 



vane (van) n. [A.S. fana, a small 

 flag.] The vexillum or web of a 

 feather, consisting of barbs, etc. 

 (zool.). 



variant (va'riant) n. [L. varians, 

 changing.] An individual or 

 species deviating in some char- 

 acter or characters from the type 

 (dial.). 



variation (va'rlashun) n. [L. variare, 

 to change.] Divergence from type 

 in certain characteristics (dial.). 



varicellate (vartseTat) a. [L. varix, 

 ridge.J Apfil. shells with small or 

 indistinct ridges (zool.). 



variola (va'riol) n. [L. varius, 

 various.] A small pit-like marking 

 found on various parts in Insects 

 (goal.). 



varix (va'riks) n., varices (var'isez) 

 plu. [L. varix, dilatation.] One 

 of the prominent ridges across the 

 whorls of various univalve shells 

 showing the previous position of 

 the outer lip (zool.). 



vas (vas) ., vasa (va'za) plu. [L. 

 vas, vessel.] A small vessel, duct, 

 blind tube, or canal (anat.). 



vasa deferentia, the ducts leading 

 from the testes to the penis (anat.), 

 or to the exterior, the urogenital 

 canal, or cloaca (sool.). 



