One of the mysteries of the English language finally explained.
A thickened and hardened part of the skin; a callus.
- ‘The patterns are made up of rough, raised patches of skin called callosities.’
- ‘Because the heads bear distinguishing patches of rough skin, called callosities, a good overhead view allows scientists to recognize an individual whale, year after year.’
- ‘He had wagered that she would be a Teutonic heavyweight with callosities growing on her forehead.’
- ‘During these beatings, she would clench fists, which led to thick callosity on her fingers.’
- ‘These are called callosities, and their colouration varies with the reproductive season.’
Late Middle English: from French callosité, from Latin callositas, from callosus ‘hard-skinned’, from callum, callus ‘hardened skin’.
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