flagellum

nouns

a whip used to inflict punishment (often used for pedantic humor)
flagellum, scourge
is derived from
flagellate
a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)
flagellum
is derived from
flagellate
is a part of
a large group of bacteria having rigid cell walls; motile types have flagella
eubacteria, eubacterium, true bacteria
is a part of
the male reproductive cell; the male gamete
"a sperm is mostly a nucleus surrounded by little other cellular material"
sperm, sperm cell, spermatozoan, spermatozoon
is a type of (narrower)
a natural prolongation or projection from a part of an organism either animal or plant
"a bony process"
appendage, outgrowth, process