verb (used with or without object), ker·a·tin·ized, ker·a·tin·iz·ing.
to make or become keratinous.
Also especially British, ker·a·tin·ise.
Origin of keratinize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to become or cause to become impregnated with keratin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012