sperm

1 of 2

noun

ˈspərm 

plural sperm or sperms

1

a

: semen

b

: a male gamete

especially : spermatozoon sense 1

2

: a product of the sperm whale

sperm-

2 of 2

combining form

variants or spermo- or sperma- or spermi-

: seed : germ : sperm

spermatheca

spermicide

Examples of sperm in a Sentence

Noun

The sperm fertilizes the egg.

Recent Examples on the Web

Noun

Considered by fertility doctors to be the most effective medical intervention — in which eggs are surgically removed and combined with sperm inside a lab to create embryos that are transferred to the uterus — IVF is also the most expensive. — Sarah Elizabeth Richards, Los Angeles Times, 27 Sep. 2026

After some quality control checks, including researchers who examine mosquito sperm under a microscope to ensure those swimmers are dead in the water, they get packed into containers for release. — Alex Harris, Miami Herald, 21 Sep. 2026

In May 2005, scientists identified sperm collected from Houck's body during an autopsy and a portion of the material was cut for DNA analysis. — Bryan Lynn, CBS News, 21 Sep. 2026

In 2009, healthy kits were born from the 20-year-old sperm of a ferret long deceased. — Shi En Kim, AZCentral.com, 21 Sep. 2026

Word History

Etymology

Noun

Middle English, from Middle French esperme, sperme, from Late Latin spermat-, sperma, from Greek, literally, seed, from speirein to sow; probably akin to Armenian p'aratem I dispense

Combining form

Greek sperm-, spermo-, from sperma

First Known Use

Noun

14th century, in the meaning defined at sense 1a

Phrases Containing sperm

• sperm bank
• sperm cell
• sperm count
• sperm donor
• sperm nucleus
• sperm oil
• sperm whale

Rhymes for sperm

• berm
• ferm
• firm
• germ
• herm
• squirm
• term
• therm
• worm
• wurm
• affirm
• bookworm

Kids Definition

sperm

noun

ˈspərm 

plural sperm or sperms

1

: semen

2

: a mobile male gamete that has a long and thin or rounded head and a long thin tail that acts as a flagellum

called also spermatozoon, sperm cell

Medical Definition

sperm

noun

ˈspərm 

plural sperm or sperms

1

: the male impregnating fluid : semen

2

: a male gamete

especially : spermatozoon