Try Our Apps


Avoid these words. Seriously.


[os-uh-fahy] /ˈɒs əˌfaɪ/
verb (used with object), ossified, ossifying.
to convert into or cause to harden like bone.
verb (used without object), ossified, ossifying.
to become bone or harden like bone.
to become rigid or inflexible in habits, attitudes, opinions, etc.:
a young man who began to ossify right after college.
Origin of ossify
1705-15; < Latin ossi- (stem of os) bone + -fy
Related forms
ossifier, noun
unossifying, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for ossify
Historical Examples
British Dictionary definitions for ossify


verb -fies, -fying, -fied
to convert or be converted into bone
(intransitive) (of habits, attitudes, etc) to become inflexible
Derived Forms
ossifier, noun
Word Origin
C18: from French ossifier, from Latin os bone + facere to make
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
Cite This Source
Word Origin and History for ossify

1713, "to turn into bone," a back-formation from ossification, or else modeled on French ossifier (18c.) and formed from Latin os (genitive ossis) "bone" (see osseous) + -fy. Figurative sense is from 1858. Related: Ossified; ossifying.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
ossify in Medicine

ossify os·si·fy (ŏs'ə-fī')
v. os·si·fied, os·si·fy·ing, os·si·fies
To change into bone.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Nearby words for ossify

Word Value for ossify

Scrabble Words With Friends