The act of coitus or sexual intercourse, when the man inserts his erect penis into the woman’s vagina and after a succession of thrusting movements ejaculates his semen.
A male accessory reproductive organ in nematodes helping to attach the male to the female during copulation. There may be one or two or it may be absent in some nematodes.... spicule
(sexual intercourse, copulation) n. sexual contact between a man and a woman during which the erect penis enters the vagina and is moved within it by pelvic thrusts until *ejaculation occurs. See also orgasm. —coital adj.... coitus