from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A verb, such as a form of be or seem, that identifies the predicate of a sentence with the subject. Also called linking verb.
- n. Logic The word or set of words that serves as a link between the subject and predicate of a proposition.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A word used to link the subject of a sentence with a predicate (usually a subject complement or an adverbial); it serves to unite (or associate) the subject with the predicate. (e.g. be).
- n. A function that represents the association between two or more variables, independent of the individual marginal distributions of the variables.
- n. A device that connects two or more keyboards of an organ
from the GNU version of the Collaborative International Dictionary of English
- n. The word which unites the subject and predicate.
- n. The stop which connects the manuals, or the manuals with the pedals; -- called also coupler.
from The Century Dictionary and Cyclopedia
- n. In grammar and logic, that word or part of a proposition which expresses the relation between the subject and the predicate.
- n. In an organ, same as coupler.
- n. In anatomy, some coupling or connecting part, usually distinguished by a qualifying term; especially, a median bone or cartilage connecting hyoidean and branchial arches, and also uniting opposite halves of these arches respectively, as a basibranchial.
- n. In law, sexual intercourse.
- n. In botany, same as zygospore.
- n. In zoology, the cell resulting from the union of a microgamete and a macrogamete among the Sporozoa.
- n. In chem., one compound substance united with and modifying the character of another. See copulated compound.
- n. A commissure; the corpus callosum.
- n. In music, a brief connecting passage, especially between the subject and answer of a fugue. Also called codetta or conduit.
- n. Same as amboceptor.
- n. In ichthyology, same as actinost.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an equating verb (such as `be' or `become') that links the subject with the complement of a sentence
Latin cōpula, link.(American Heritage® Dictionary of the English Language, Fourth Edition)
Borrowed from Latin copula ("bond, tie"). See there for details. (Wiktionary)