sperm
1 Americannoun
combining form
noun
-
another name for semen
-
a male reproductive cell; male gamete
Usage
What does sperm- mean? Sperm- is a combining form used like a prefix representing “sperm.” Sperm are the reproductive cells contained in semen. Sperm- means "sperm" both literally and figuratively, as in "germ" or "seed." It is occasionally used in scientific terms, especially in biology. Sperm- comes from the Greek spérma, meaning “seed.”What are variants of sperm-?Sperm- is a variant of spermo-, which loses its -o- when combined with words or word elements beginning with vowels. The forms spermi- and spermato- are also combining forms from Greek spérma that are variously used to mean "sperm" or "seed."Related combining forms used as suffixes include -sperm, -spermal, -spermic, and -spermous. Want to learn more? Check out our Words That Use entries for each of these seven forms.
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.
Discover More
Sperm are much smaller than the ova they fertilize.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of sperm1
1350–1400; Middle English sperme < Late Latin sperma < Greek spérma seed, equivalent to sper- (base of speírein to sow seeds) + -ma noun suffix of result
Origin of sperm2
First recorded in 1830–40; by shortening
Origin of -sperm4
< Greek -spermos; see -spermous
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
However, Firdevs has told us sperm procurement was not part of her job and she did not know patients were being informed otherwise.
From BBC ● Aug. 18, 2026
However, they have concerns the requested sperm and egg donors may not have been used in their fertility treatments.
From BBC ● Aug. 18, 2026
Now, after 13 years of uncertainty, Rachel and Jonah's DNA tests indicate that he is her biological son, but that Ditto was not the sperm donor.
From BBC ● Aug. 18, 2026
At least 30 children, most of them British, are feared to have been conceived by IVF treatment in northern Cyprus using the wrong sperm or egg donors.
From BBC ● Aug. 18, 2026
It was an especially large type of whale called a sperm whale; from nose to tail it was as long as the Acorn itself.
From "The Long-Lost Home" by Maryrose Wood
![]()
Now, the theory has always been that the contact of the sperm- and germ-cells causes the development and fertilization of the latter.
From The Nests and Eggs of Indian Birds, Volume 1 by Allan Octavian Hume
They identified these sperms by measuring how much calcium they absorbed.
From Science Daily ● Mar. 5, 2024
Using the method, the team focused on sperms with defective capacitation, a process through which sperms become capable of fertilizing an egg.
From Science Daily ● Mar. 5, 2024
“If we want to go international and help women and couples in different parts of the world, we need non-Danish sperm, sperms of all colours,” says Schou.
From Newsweek ● Mar. 13, 2015
The history of endocrinology can be traced back to Dr.Brown-Séquard injecting himself with dog sperms to study its effect on his vitality and vigor.
From Scientific American ● Jun. 14, 2011
The rest are germ-cells, which subsequently form the eggs and sperms of the new individual, i.e. they are the germ-cells of the next generation.
From Embryology The Beginnings of Life by Gerald R. Leighton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.