A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.
A shining area on the frons of many species of Tabanomorpha (horse flies and relatives).
The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece.
The new formation over the end of a cutting, before it puts out rootlets.
To form such hardened tissue.
A whip used for self-flagellation.
A flagellation as a means of obtaining sexual gratification.
A specific branch of knowledge or learning.
An enforced compliance or control.
A category in which a certain art, sport or other activity belongs.
A controlled behaviour; self-control.
A set of rules regulating behaviour.
A punishment to train or maintain control.
A state of order based on submission to authority.
A systematic method of obtaining obedience.
To impose order on someone.
To train someone by instruction and practice.
To punish someone in order to (re)gain control.
To teach someone to obey authority.