1. An equating verb (such as 'be' or 'become') that links the subject with the complement of a sentence
   "In the sentence 'She became a doctor,' 'became' is a copula verb";
   - copulative, linking verb
    
2. (statistics) the function that gives the n-point cumulative distribution function as a function of the 1-point cumulative distributions
   "the n-point copula and the 1-point PDF completely characterize the n-point PDF"

Derived forms: copulas, copulae

Type of: verb

Encyclopedia: Copula