callus

noun, verb — 7 senses

callus

noun

US, UK /ˈkæləs/

Etymology Borrowed from Latin callum (“hard skin”). Displaced Old English wearr.

1

A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.

  • Sylvanshine had once been on a first date with a Xerox rep who had complex and slightly repulsive patterns of callus on her fingers from playing the banjo semi-professionally2011, David Foster Wallace, The Pale King, page 17:
2

The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece.

3

Biology, Botany, Natural sciences The new formation over the end of a cutting, before it puts out rootlets.

4

Biology, Botany, Natural sciences In orchids, a fleshy outgrowth from the labellum.

5

Biology, Botany, Natural sciences In grasses, a hardened extension from the base of a floret, which may or may not elongate and is often covered in hairs or bristles.

6

Biology, Entomology, Natural sciences A shining area on the frons of many species of Tabanomorpha (horse flies and relatives).

Derived terms
callousy, callused, calluslike, callusy, subcallus
Related terms
calliferous, callous

callus

verb

Etymology Borrowed from Latin callum (“hard skin”). Displaced Old English wearr.

1

To form such hardened tissue.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.

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