from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The mature fertilizing gamete of a male organism, usually consisting of a round or cylindrical nucleated cell, a short neck, and a thin motile tail. Also called sperm cell, zoosperm.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The reproductive cell or gamete of the male, carried in semen, that fertilizes the ovum to produce the zygote.
from the GNU version of the Collaborative International Dictionary of English
- n. Same as spermatozoid.
from The Century Dictionary and Cyclopedia
- n. One of the numberless microscopic bodies contained in semen, to which the seminal fluid owes its vitality, and which are the immediate and active means of impregnating or fertilizing the ovum of the female; a spermatic cell or filament; a spermatozoan or spermatozooid.
- n. A genus of animalcules.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the male reproductive cell; the male gamete
-- The male reproductive element is called spermatozoon, or zoosperm.
Dorland's Medical Dictionary defines pregnancy, in relevant part, as "the condition of having a developing embryo or fetus in the body, after union of an oocyte and spermatozoon."
To explain such “different people choices”, Parfit adopts the genetic identity view of personal identity: the identity of a person is at least in part constituted by the DNA the person has as a result of which ovum was fertilized by this or that spermatozoon in the creation of this person.
Here, in all these cases, what is required is the detachment of two portions of the parental organisms, which portions we know as the egg and the spermatozoon.
Wise man stay away from the Eurostar, now promoting itself as the tunnel of love with spermatozoon baked beans.
After a few spins its thunderous bassline and electro chorus finally take hold and lodge in your brain like an egg-hungry spermatozoon.
But, as ever, Clarksonâ€™s voice – as powerful as Alan Sugar in the boardroom, as gutsy as an egg-hungry spermatozoon – makes it that little bit more interesting than it might otherwise have been.
Why should anyone have to pay taxes on income from my labor while the result of the lucky spermatozoon contest is excused?
The term “spermatozoon” is well chosen since the sperm, with its long flagellum—or tail—is very much akin to a protozoan.
That hereditary characters are transmitted from parents to offspring via special elements in the ovum and spermatozoon, the so-called genes, has long been known.