Search Result for "cavy": 
Wordnet 3.0

NOUN (1)

1. short-tailed rough-haired South American rodent;


The Collaborative International Dictionary of English v.0.48:

Guinea pig \Guin"ea pig`\ [Prob. a mistake for Guiana pig.] 1. (Zool.) A small Brazilian rodent (Cavia porcellus or Cavia cobaya), about seven inches in length and usually of a white color, with spots of orange and black. Called also cavy. It is the domesticated form of the wild cavy, often kept as a pet and used commonly as an experimental animal in laboratory research. [Webster 1913 Suppl. +PJC] 2. Hence, [figuratively]: Any animal or person used in an experiment; -- also applied to people who are unwillingly or unknowingly subjected by authorities to policies or procedures which might cause bodily or mental harm. [PJC] 3. A contemptuous sobriquet. [Obs.] --Smollett [Webster 1913 Suppl. +PJC]
The Collaborative International Dictionary of English v.0.48:

Cavy \Ca"vy\, n.; pl. Cavies. [NL. cavia, fr. Brazilian cabiai: cf. F. cabiai.] (Zool.) A rodent of the genera Cavia and Dolichotis, as the guinea pig (Cavia cobaya). Cavies are natives of South America. [1913 Webster] Water cavy (Zool.), The capybara. [1913 Webster]
WordNet (r) 3.0 (2006):

cavy n 1: short-tailed rough-haired South American rodent