copula
NounWordNet 3.0
Noun (1)
- an equating verb (such as `be' or `become') that links the subject with the complement of a sentenceSynonyms: copulativelinking verb
Webster's Dictionary (GCIDE)
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]