trochal

[ troh-kuhl ]

Phonetic (Standard)IPA

adjective

, Zoology.

trochal

/ ˈtrəʊkəl /

Origin of trochal¹

1835–45; < Greek troch ( ós ) wheel + -al ¹

Origin of trochal¹

C19: from Greek trokhos wheel

On the sides of the ventral depression are two ridges which form the lateral boundaries of the trochal disc.

At a later period the lateral ridges of the trochal disc meet dorsally and so enclose the proral lobe.

April 23, 2024inveterate

[in-vet-er-it ]

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