Trochus
/ˈtroʊkəs/noun
A genus of sea snails with a conical, often top-shaped shell; also a technical term in anatomy and architecture for a wheel-like or pulley-shaped form.
Did you know?Trochus ultimately traces back to Greek τροχός (trokhós), meaning “wheel” or “running wheel,” the same ancient image that later fed scientific words for turning, spinning, and pulley-like forms.
Etymological Timeline
Proto-Indo-European
PIE
*tregh-
“to run, turn, or roll”
Ancient Greek
Greek
τροχός (trokhós)
“wheel; something that turns or runs in a circle”
Latin
Latin
trochus
“a wheel, circular object; later a top-shaped shell”
Late Latin / Medieval Latin
Latin
trochus
“technical term for a wheel-like form in science and description”
Modern English
English
trochus
“a top-shaped marine shell or a wheel-like anatomical/technical form”
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