noun, plural cal·lus·es.
- a hardened or thickened part of the skin; a callosity.
- a new growth of osseous matter at the ends of a fractured bone, serving to unite them.
- the tissue that forms over the wounds of plants, protecting the inner tissues and causing healing.
- a deposit on the perforated area of a sieve tube.
- (in grasses) a tough swelling at the base of a lemma or palea.
verb (used without object), cal·lused, cal·lus·ing.
verb (used with object), cal·lused, cal·lus·ing.
Origin of callus
Related Words for callusedconform, strengthen, stupefy, discipline, inure, develop, callous, acclimatize, adapt, habituate, stun, steel, embitter, season, train, numb, deaden, teach, dull, stiffen
Examples from the Web for callused
Historical Examples of callused
He pressed the callused palm of his hand against her cheek and said something, then turned and quickly walked out of the room.The Saracen: Land of the Infidel
This year we tried some black walnut grafts and found that they callused in 10 to 14 days when placed in a grafting case.
These callused rapidly and were planted immediately in the nursery.
It may even occur that the whole inner bark around the trunk is of a callused nature, without any open cankers showing at all.
In this manner, cuttings which have been obtained in winter or spring can be callused before planting time.The Nursery Book
Liberty Hyde Bailey
noun plural -luses
- a mass of hard protective tissue produced in woody plants at the site of an injury
- an accumulation of callose in the sieve tubes
Word Origin for callus
"hardened skin," 1560s, from Latin callus, variant of callum "hard skin," related to callere "be hard," from PIE root *kal- "hard" (cf. Sanskrit kalika "bud," Old Irish calath "hard," Old Church Slavonic kaliti "to cool, harden").