callus

¹cal·lus

noun \ˈka-ləs\

Definition of CALLUS

1

: a thickening of or a hard thickened area on skin or bark

2

: a mass of exudate and connective tissue that forms around a break in a bone and is converted into bone in healing

3

: soft tissue that forms over a wounded or cut plant surface

Origin of CALLUS

Latin

First Known Use: 1563

Other Medicine Terms

analgesia, angina, diabetes, hepatitis, homeopathy, logorrhea, palliate, pandemic

Rhymes with CALLUS

balas, callous, chalice, gallus, malice, palace, Pallas, phallus, thallus

²callus

verb

Definition of CALLUS

intransitive verb

: to form callus

transitive verb

: to cause callus to form on

First Known Use of CALLUS

1864

Other Medicine Terms

analgesia, angina, diabetes, hepatitis, homeopathy, logorrhea, palliate, pandemic

Rhymes with CALLUS

callous, palace

cal·lus

noun \ˈkal-əs\   (Medical Dictionary)

Medical Definition of CALLUS

1

: a thickening of or a hard thickened area on skin

2

: a mass of exudate and connective tissue that forms around a break in a bone and is converted into bone in the healing of the break

callus

noun    (Concise Encyclopedia)

In botany, soft tissue that forms over a wounded or cut plant surface, leading to healing. A callus arises from cells of the cambium. When a callus forms, some of its cells may organize into growing points, some of which in turn give rise to roots while others produce stems and leaves. Thus a callus may be capable of regenerating an entire plant.