noun
an equating verb (such as `be' or `become') that links the subject with the complement of a sentence
• Syn: ↑copula, ↑copulative
• Derivationally related forms: ↑copulative (for: ↑copulative), ↑copular (for: ↑copula)
• Hypernyms: ↑verb
Useful english dictionary. 2012.