• WordNet 3.6
    • v callus form a callus or calluses "His foot callused"
    • v callus cause a callus to form on "The long march had callused his feet"
    • n callus (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
    • n callus bony tissue formed during the healing of a fractured bone
    • n callus an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
    • ***
Webster's Revised Unabridged Dictionary
    • Callus (Med) Same as Callosity
    • Callus (Med) The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistence, but is ultimately converted into true bone and unites the fragments into a single piece.
    • Callus (Hort) The new formation over the end of a cutting, before it puts out rootlets.
    • ***
Century Dictionary and Cyclopedia
    • n callus In anatomy: Hard skin; a callosity
    • n callus A new growth of osseous tissue between and around the extremities of fractured bones, serving to unite them.
    • n callus In botany, any unusually hard excrescence upon a plant; also, the thickening of the substance of the perforated septa between sieve-cells, and the close cellular structure which is formed over wounds, by which the inner tissues are protected and healing is effected.
    • n callus In horticulture, the cap or thickening formed over the end of a cutting before it sends forth rootlets.
    • n callus In conchology, a callosity or indurated thickening of a shell by the deposit of some hard substance different from the rest of the shell.
    • ***
Chambers's Twentieth Century Dictionary
    • n Callus kal′us a thickening of the skin: a term employed in old surgical works for the exuded material by which fractures of bones are consolidated together.
    • ***


Webster's Revised Unabridged Dictionary
L. See Callous
Chambers's Twentieth Century Dictionary


In literature:

I accepted the calluses as of long time and a matter of course.
"The Jacket (The Star-Rover)" by Jack London
His bare feet were pervaded by a dull warmth that quickly penetrated the thick calluses.
"South Sea Tales" by Jack London
Layer after layer his professional callus fell away, leaving him quick again.
"The Street of Seven Stars" by Mary Roberts Rinehart
The callus which forms is largely fibrous, and if the animal is put to work too quickly this callus is liable to rupture.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
The spikelets are binate one sessile and the other shortly pedicelled, with the callus villous.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar
If the center of the wound falls in, the callus cannot cover it, and an open sore remains.
"The Apple-Tree" by L. H. Bailey
The whole palm of the hand or soles of the feet may be the seats of a continuous callus.
"The Home Medical Library, Volume II (of VI)" by Various
The amount of callus produced in the repair of a given fracture is greater when movement is permitted between the broken ends.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
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" by Robert Shea
She lowered her eyes, rubbed at his calluses again.
"Death of a Spaceman" by Walter M. Miller
It is usually better, however, to place them for several weeks in a callusing bed before planting.
"Manual of American Grape-Growing" by U. P. Hedrick
Warts and endless calluses on each finger, and the palms.
"The Variable Man" by Philip K. Dick
Some cuttings root better when the cut is allowed to form a "callus," which in warm weather only takes a few hours.
"Small Gardens" by Violet Purton Biddle
The classical accounts of the invasion of Aelius Callus in 26 B.C.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3" by Various
The calluses along the palm were still soft from the water.
"Caribbee" by Thomas Hoover
But then he took her hand and felt its fine warmth, the calluses he remembered from all those months ago, and he felt better.
"Makers" by Cory Doctorow
The Cuttings are stored the same as stem Cuttings and allowed to callus.
"The Practical Garden-Book" by C. E. Hunn
"American Pomology" by J. A. Warder
After the fracture has completely healed the "callus" gradually disappears.
"The Little Gleaner, Vol. X." by Various
The living cells bordering the wound form cork, and then those deeper down grow out and form a callus.
"Disease in Plants" by H. Marshall Ward

In news:

João Pinto With The Victoria Hotel Manager Kevin Callus.
One option is to use callused cuttings when producing vegetative geraniums .
This causes friction against the shoe and a painful callus may form on the tip of the toe.
Plantar warts are similar to calluses in look an commonly come about for the stress factors on the feet.
Plantar wart s are simple papillomas and must be differentiated from a callus or a neurovascular corn, because surgery is contraindicated for all plantar wart s.
Andrew Callus and Douglas Busvine Reuters.
To reduce the size of calluses or corns and lessen pain , soak your feet in warm water, and gently massage the affected areas with a pumice stone or foot file, being careful to leave a layer of the callus or corn intact.
Holding legs while ­clipping toenails, massaging calves and ankles, and scrubbing down thick callus can all quickly lead to sore backs and arms — and cranky dispositions.
Kiss Foot Renew exfoliating socks offer a scrub-free solution for callused soles.
Watch as PopSci gets its callused fingers on the guitar that may just revolutionize music.
Plantar warts are similar to calluses in look an commonly come about for the stress factors on the feet.
And need we even mention a runner's camera-unready feet, with unsightly calluses and lurking fungi.
KIK-N-IT Callus Remover & Smoother .
Softens calluses and dry skin on your feet.
While it won't eliminate tough, stubborn calluses that are already there, it works wonders softening dry, scaly feet, and with regular application, helps keep new calluses from cropping up.