810 



lei broader depressions which run into each 

 other, and resemble the sand of the sea- 

 shore when left by the tide. 



UNDULATED. Having a waved surface. 



UNDULATING. Waving ; rising and falling, 

 vibrating. 



UNDULATORY. Moving in the manner of 

 waves ; as, the undulatary motion of the 

 air is supposed to be the cause of sounds. 



UNFIOURED. Representing no animal form. 



UNFLEDGED. Not yet furnished with fea- 

 thers. 



UNGUES. Claws. 



UNGUICULATED. Having sharp claws; armed 

 with a claw. 



UNGULA. The terminal joint of the tarsus. 



UNGULATE. Shaped like a horse's hoof. 



UNICORN ous. Having only one horn. 



UNIGENOUS. Of one kind ; of the same 

 genus. 



UNILATERAL. Being or existing on one side 

 only. 



UNILOCULAR. With a single chamber or 

 compartment. 



UNIPAROUS. Producing one at a birth. 



UNIVALVE. The name given to those shells 

 which consist of one valve only. 



UNIVALVULAR. Having only one valve. 



UNNATURAL. Contrary to the laws of nature; 

 not in conformity with natural feelings or 

 instincts. 



URCEOLATE. Swelling in the middle, like a 

 pitcher. 



UROPYGIAL. Belonging to the rump. 



URSINE. Pertaining to or resembling a bear. 



UTERINE. Pertaining to the uterus or womb. 



VACCINE. Pertaining to cows ; as, the vaccine 

 disease or cow-pox. 



VAGINOPENNOUS. Having the wings covered 

 with a hard case or sheath, as coleopterous 

 insects. 



VALVE. One of the pieces or divisions in 

 bivalve and multivalve shells. A mem- 

 braneous partition within the cavity of a 

 vessel, which opens to allow the passage of 

 a fluid in one direction, and shuts to pre- 

 vent its regurgitation. 



VALVULAR. Containing valves. 



VARICES. Longitudinal raised bands or 

 ridges, which occur at regular distances in 

 some univalves. They are the remnants 

 of former apertures, and mark the progres- 

 sive enlargement of the shell. 



VARICOSE. Preternaturally enlarged ; as, 

 varicose veins. 



VARIEGATED. Diversified in colours or ex- 

 ternal appearance. 



VARIETY. The well-marked difference which 

 often occurs between animals of the same 

 species. 



VARIOLOUS. Pertaining to or resembling 

 the small-pox. 



VASCULAR. Composed of, or pertaining to, 

 the vessels of animal bodies, as arteries, 

 veins, and the like, which form the vascu- 

 lar system. 



VEGETATIVE. Having the power to produce 

 growth in plants. 



VENTER. The abdomen or lower belly. 



VENT. That part of a bird near the anus ; 

 that part near the extremity of the abdo- 

 men in birds. 



VENT-FEATIIEIIS. Those feathers that lie 

 from the vent, or anus, to the tail under- 

 neath. 



VENTRAL. Pertaining to the belly. The 

 ventral fins in lishes are placed between 

 the anus and the throat. 



VENTRICOSE. Swollen in the middle ; in- 

 flated. 



VENTRICULAR. Belonging to a ventricle. 



VENTRICULUS. The second portion of the 

 alimentary canal in insects. 



VERMES. A term for worm-like animals : 

 applied in a very extensive sense by Lin- 

 naeus. 



VERMICULAR. Resembling a worm, and more 

 particularly, the motion of a worm ; as 

 the vermicular motion of the intestines, 

 called also peristaltic. 



VERMICULATE. VERMICULATED. Covered 

 with tortuous markings or excavations, 

 like worm-eaten wood. 



VERMIFORM. Worm-shaped. 



VERMILION. A delicate bright red colour. 



VERMINOUS. Tending to breed vermin. 



VEKMIPAROUS. Producing worms. 



VERMIVOROUS. Feeding on worms. 



VERNACULAR. Belonging to a person by 

 birth or nature. 



VERNAL. Belonging to the spring ; appear- 

 ing in the spring. 



VERRICULATE. Having one or more verri- 

 cules. 



VERRICULE. A thick-set tuft of parallel 

 hairs. 



VERRUCA. A small flattish wart-like pro- 

 minence. 



VERRUCOSE. Covered with tubercles resem- 

 bling warts. 



VERSICOLOURED. Of various and changeable 

 colours. 



VERTEBRAL. VERTEBRATED. Belonging to 

 the Vertebrata; having a back-bone or 

 vertebral column, containing the spiuul 

 marrow. 



VERTEBRATA. That large and important 

 class of animals distinguished by having a 

 back-bone or vertebral column ; as man, 

 quadrupeds, birds, amphibia, and fishes. 



VERTEBRAE. The joints of the spine or back- 

 bone of an animal. 



VERTEX. The top, or highest part. 



VERTICAL. Erect ; perpendicular. 



VERTICULATE. Arranged like the rays of a 

 wheel or spindle. 



VESICATORY. Having the property of caus- 

 ing blisters. 



VESICLE. A little bladder, or a portion of 

 the cuticle separated from the skin and 

 filled with sonic humour. 



VESICUL^E. Receptacles like little bladders. 



VESICULAR. VESICULOUS. Pertaining to 

 vesicles ; having little bladders or super- 

 ficial glands. 



ViBRATiLE. When there is a constant os- 

 cillation of any part. 



VIBRATORY. Consisting in vibration or os- 

 cillation ; as, a vibratory motion. 



VLBRISS/E. The hairs that, in certain birds, 

 stand forward like feelers : in some birds 

 they are slender, as in Flycatchers, &c., 

 and point both upwards and downwards, 

 from both the upper and under sides of the 

 mouth. 



