sperm

As nouns the difference between sperm and hectocotylus

is that sperm is semen; the generative substance of male animals while hectocotylus is a modified arm of any of several male cephalopods that functions as a reproductive organ by transfering sperm to the mantle of the female.

As nouns the difference between sperm and sperminator

is that sperm is (uncountable) semen; the generative substance of male animals while sperminator is a device that kills sperm.

As a noun sperm

is (uncountable) semen; the generative substance of male animals.

As an adjective aspermic is

(of a male animal) unable to produce sperm.

As nouns the difference between sperm and spermatism

is that sperm is (uncountable) semen; the generative substance of male animals while spermatism is the emission of sperm or semen.

As nouns the difference between sperm and ovotestis

is that sperm is (uncountable) semen; the generative substance of male animals while ovotestis is (biology) a hermaphroditic gonad, found in certain gastropods, that produces both sperm and eggs.

As a noun sperm

is (uncountable) semen; the generative substance of male animals.

As an adjective spermlike is

resembling sperm or an individual sperm.

As nouns the difference between sperm and spermine

is that sperm is (uncountable) semen; the generative substance of male animals while spermine is (organic compound) a polyamine, n,n'-bis(3-aminopropyl) butane-1,4-diamine , originally extracted from sperm, that is involved in cellular metabolism.

As nouns the difference between sperm and germarium

is that sperm is (uncountable) semen; the generative substance of male animals while germarium is (biology) the parts of an ovary and testis (in rotifera etc) that produces eggs and sperm respectively.

As nouns the difference between sperm and catsper

is that sperm is (uncountable) semen; the generative substance of male animals while catsper is (biology) any of a group of cation channels specific to sperm.

As nouns the difference between sperm and pseudovirgin

is that sperm is (uncountable) semen; the generative substance of male animals while pseudovirgin is a person who appears or pretends to be a virgin but is not.

As an adjective pseudovirgin is

(entomology) a female of certain species that has mated but has not received sperm.