callus
Pathology, Physiology.
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.
Also callose. Botany.
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.
to form a callus.
to produce a callus or calluses on: Heavy work callused his hands.
Origin of callus
1Other words from callus
- un·cal·lused, adjective
Words that may be confused with callus
- callous, callus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use callus in a sentence
Hertle was determined to look at what was going on in the callus.
Plant Cells of Different Species Can Swap Organelles | Viviane Callier | January 20, 2021 | Quanta MagazineThen, while observing live cells in the callus, Hertle caught images of the chloroplasts in the act of migration.
Plant Cells of Different Species Can Swap Organelles | Viviane Callier | January 20, 2021 | Quanta MagazineAbout a decade ago, Bock and his team grafted together two species of tobacco plants and sequenced genes from both sides of the callus.
Plant Cells of Different Species Can Swap Organelles | Viviane Callier | January 20, 2021 | Quanta MagazineYou can use a urea-based cream to soften calluses, and wear socks or even plastic wrap after moisturizing your feet at night to help it do its work.
‘A pandemic of broken toes’: How life at home has been painful for feet | Elizabeth Chang | January 12, 2021 | Washington PostDiabetics should not treat calluses themselves, Andersen and Pearl warned, and should be keeping up with their regular visits to their podiatrist to guard against foot ulcers.
‘A pandemic of broken toes’: How life at home has been painful for feet | Elizabeth Chang | January 12, 2021 | Washington Post
His fingertips were callused, worked rough with exertion well beyond the normal call of duty.
Down and Out in the Magic Kingdom | Cory DoctorowIt 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 BaileyThis year we tried some black walnut grafts and found that they callused in 10 to 14 days when placed in a grafting case.
Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting | Northern Nut Growers AssociationThese callused rapidly and were planted immediately in the nursery.
Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting | Northern Nut Growers Association
British Dictionary definitions for callus
/ (ˈkæləs) /
Also called: callosity an area of skin that is hard or thick, esp on the palm of the hand or sole of the foot, as from continual friction or pressure
an area of bony tissue formed during the healing of a fractured bone
botany
a mass of hard protective tissue produced in woody plants at the site of an injury
an accumulation of callose in the sieve tubes
biotechnology a mass of undifferentiated cells produced as the first stage in tissue culture
to produce or cause to produce a callus
Origin of callus
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for callus
[ kăl′əs ]
An area of the skin that has become hardened and thick, usually because of prolonged pressure or rubbing.
The hard bony tissue that develops around the ends of a fractured bone during healing.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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