• WordNet 3.6
    • v copulate engage in sexual intercourse "Birds mate in the Spring"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: It only takes a male horse 14 seconds to copulate
    • Copulate Joined; associated; coupled.
    • Copulate (Gram) Joining subject and predicate; copulative.
    • v. i Copulate To unite in sexual intercourse; to come together in the act of generation.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The male praying mantis cannot copulate while its head is attached to its body. The female initiates sex by ripping the males head off
    • copulate To join together.
    • copulate To unite as a pair; especially, to unite sexually.
    • copulate Joined.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t., v.i Copulate to unite in sexual commerce
    • ***


  • Eric Hoffer
    “There are no chaste minds. Minds copulate wherever they meet.”
  • T. S. Eliot
    “Birth, copulation and death. That's all the facts when you come to the brass tacks.”


Webster's Revised Unabridged Dictionary
L. copulatus, p. p. of copulare, to couple, fr. copula,. See Copula


In literature:

Conjonctions: copulatives, disjonctives, continuatives, sub-continuatives, 148.
"An Introductorie for to Lerne to Read, To Pronounce, and to Speke French Trewly" by Anonymous
So the birds and all the others of every sort assembled, and learnt from the Creator when to copulate, and when to give birth to their young.
"Aino Folk-Tales" by Basil Hall Chamberlain
In the latter case there is copulation, during which each animal plays the parts of both male and female.
"The Sexual Question" by August Forel
The suspender of the larger copulative cell preserves its primitive form and becomes scarcely any larger.
"Fungi: Their Nature and Uses" by Mordecai Cubitt Cooke
The disjunctive, therefore, not the copulative, is the proper conjunction.
"Flowers of Freethought" by George W. Foote
The contagion, the nature of which remains still unknown, is transmitted mainly during copulation.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
I was holding it between the very tips of my fingers, just below the feet of the copulating couple.
"My Secret Life, Volumes I. to III." by Anonymous
It is doubtful that any attempts at copulation are successful up to this time.
"Natural History of the Bell Vireo, Vireo bellii Audubon" by Jon C. Barlow
The eggs are laid shortly after copulation.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6" by Various
With no preliminaries the male flew to the female and lit on her back to copulate.
"Observations on the Mississippi Kite in Southwestern Kansas" by Henry S. Fitch

In news:

Typically, copulating males are disturbed by one to four rivals.
When we last saw princess of glitter — and not much else — Kesha, she was off copulating with ghosts.
The fertilization success of an insemination is at risk when a female has the possibility to copulate with multiple males, generating sperm competition.
Males lacking per or tim copulate significantly longer than males with normal per or tim function, while females do not show this effect.
Eliot quote about birth, copulation, and death.
Regulation of Copulation Duration by period and timeless in Drosophila melanogaster.
Bats eavesdrop on the sound of copulating flies.
Fossil turtles have been caught having sex, the first known case of animals with backbones found copulating in the fossil record, researchers say.
Scientists say it's first known case of vertebrates seen copulating in the fossil record.
A night-vision video shows two captured fruit bats copulating in a cage.
Scott Johnson, 41, pleaded guilty to three counts of oral copulation with a person under 14 on Tuesday, court records showed.
At business school campuses around the world, learning how to act like a copulating rodent may become essential over the next few years.
Special circumstance allegations of murder during the course of kidnap and forced oral copulation, and of multiple murders: true, true and true.
Davis was booked on suspicion of a number of sexual assault-related charges, including rape and oral copulation with a person under 18.
Meet Nellie Courtright, the resourceful, charming, and enthusiastically copulating protagonist of LARRY MCMURTRY 's Wild West saga TELEGRAPH DAYS.

In science:

Remember that the coupling constants gα are the same for equivalent roots, thus we expect a single coupling constant in the first example and only two copuling constants in the second example.
Random matrix theory and symmetric spaces
When a sentence contains copulative be , we form the negative by putting not after the copula denying that an identity or a property hold.
Attempto Controlled English (ACE)
Copules archim´ediennes et familles de lois bidimensionnelles dont les marges sont donn´ees.
Asymptotic local efficiency of Cram\'{e}r--von Mises tests for multivariate independence
Propri´et´es statistiques des copules de valeurs extrˆemes bidimensionnelles.
A goodness-of-fit test for bivariate extreme-value copulas
Contributions `a l’´etude des copules et `a la mod´elisation des valeurs extrˆemes bivari´ees.
A goodness-of-fit test for bivariate extreme-value copulas