Search Result for "copula": 
Wordnet 3.0

NOUN (1)

1. an equating verb (such as `be' or `become') that links the subject with the complement of a sentence;
[syn: copula, copulative, linking verb]


The Collaborative International Dictionary of English v.0.48:

Copula \Cop"u*la\, n. [L., bond, band. See Couple.] 1. (Logic & Gram.) The word which unites the subject and predicate. [1913 Webster] 2. (Mus.) The stop which connects the manuals, or the manuals with the pedals; -- called also coupler. [1913 Webster]
WordNet (r) 3.0 (2006):

copula n 1: an equating verb (such as `be' or `become') that links the subject with the complement of a sentence [syn: copula, copulative, linking verb]