callus
pronunciation
How to pronounce callus in British English:
UK [ˈkæləs]
How to pronounce callus in American English:
US [ˈkæləs]
-
- Noun:
- an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
- bony tissue formed during the healing of a fractured bone
- (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
-
- Verb:
- cause a callus to form on
- form a callus or calluses
Word Origin
- callus (n.)
- "hardened skin," 1560s, from Latin callus, variant of callum "hard skin," related to callere "be hard," from PIE root *kal- (3) "hard" (cognates: Sanskrit kalika "bud," Old Irish calath "hard," Old Church Slavonic kaliti "to cool, harden").
Example
- 1. Study on callus induction and bud differentiation of gerbera .
- 2. This callus generally lasts for about three weeks .
- 3. Callus hairs equal to or slightly longer than lemma .
- 4. To have a callus on your foot .
- 5. Callus induction and protoplast culture from immature embryo of maize .