noun, plural sperm, sperms for 2.
Origin of sperm1
Definition for sperm (2 of 4)
Origin of sperm2
Definition for sperm (3 of 4)
Definition for sperm (4 of 4)
Origin of -sperm
Examples from the Web for sperm
Sperm banks also take a trivializing attitude toward donors.
John Meeker, et al. “Semen Quality and Sperm DNA Damage in Relation to Urinary Bisphenol A Among Men From an Infertility Clinic.”Can Food Make You Infertile? Foods to Eat and Avoid|Anneli Rufus|December 9, 2011|DAILY BEAST
Sperm banks around the globe are facing a crippling shortage of inventory.
Sperm washing, along with surrogates and baby showers, have all but replaced disco dates.
Sperm whales feed primarily on squid but may occasionally also take octopuses and a variety of fishes.Whales, Dolphins, and Porpoises of the Western North Atlantic|Stephen Leatherwood
These Sperm Whales inhabit warm seas, but others of the Whale family haunt colder regions.Within the Deep|R. Cadwallader Smith
Respectively, they represent attacks on the Sperm and Right Whale.
From its relative situation then, I should call this high hump the organ of firmness or indomitableness in the Sperm Whale.
Sperm retention and delayed fertilization allow young to be produced without copulation occurring in each breeding season.
British Dictionary definitions for sperm (1 of 3)
noun plural sperms or sperm
Word Origin for sperm
British Dictionary definitions for sperm (2 of 3)
British Dictionary definitions for sperm (3 of 3)
n combining form
Derived Forms-spermous or -spermal, adj combining form
Medicine definitions for sperm (1 of 2)
n. pl sperm
Medicine definitions for sperm (2 of 2)
Science definitions for sperm
A Closer Look
The human sperm cell is divided into a head that contains the nucleus, a mid-section that contains mitochondria to provide energy for the sperm, and a flagellum that allows the sperm to move. When fertilization occurs, the nucleus and other contents from the sperm cells are drawn into the cytoplasm of the egg, but the mitochondria in the sperm are destroyed and do not survive in the zygote. Since mitochondria contain their own DNA (thought to be a relic from an existence as separate symbiotic organisms), all of the mitochrondrial DNA in humans is thus inherited from the female. The semen produced by the male reproductive tract as a medium for sperm typically contains over 100 million sperm cells, all of which have but one purpose: to fertilize the single available egg.