ossify

verb

os·​si·​fy ˈä-sə-ˌfī How to pronounce ossify (audio)
ossified; ossifying

intransitive verb

1
: to change into bone
The cartilages ossified with age.
2
: to become hardened or conventional and opposed to change
so easy for the mind to ossify and generous ideals to end in stale platitudesJohn Buchan

transitive verb

1
: to change (a material, such as cartilage) into bone
ossified tendons of muscle
2
: to make rigidly conventional and opposed to change
ossified institutions
ossified ideologies

Did you know?

The skeletons of mammals originate as soft cartilage that gradually transforms into hard bone; in humans, the process begins in the womb and continues until late adolescence. This bone-building process was given the name ossification in the late 17th century, with the verb ossify following soon after. The words come from the Latin root os, meaning "bone." (Os is also a synonym of bone in scientific contexts.) Both terms have come to refer to figurative types of hardening, such as that of the heart or mind.

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What is the difference between ossify and calcify?

Medically speaking, ossify refers to the process by which bone forms, or by which tissue (usually cartilage) changes into bone. Ossification is a natural process that starts in utero and which comprises several different steps—one of which is the deposit of calcium salts, also known as calcification. Calcify, however, only refers to the deposit of calcium salts in soft tissue and is not synonymous with ossify. Ossification creates bone tissue, which is more than simply a deposit of calcium salts.

Both ossify and calcify have gained more general uses as well. Calcify refers to hardening, to becoming inflexible and unable to change:

What were once upstart revisionist currents calcified into self-regarding academic sub-specialties, sponsoring plenty of analysis but little fundamental debate.
— Sean Wilentz, The New Republic, 2 July 2001

Ossify refers to becoming inflexible, conventional, and resistant to change:

For these writers, the ossified ideologies of the world, imbedded in the communal imagination, block vision, and as artists they respond not by criticism from without but by confrontation from within.
—Robert Coover, The New York Times Book Review, 18 Mar. 1984

While ossify generally has a slightly more disparaging connotation to it than calcify does in general uses, our evidence shows that the two words are beginning to merge semantically.

Examples of ossify in a Sentence

The cartilage will ossify, becoming bone. a disease that ossifies the joints
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The stereotypes of retirement had not yet ossified: AARP Nation was a new territory, undiscovered if not fertile, and Jansson explored it in Sun City (New York Review Books, $16.95), now reissued in Thomas Teal’s 1976 translation. Dan Piepenbring, Harper's Magazine, 23 Sep. 2024 Once the answers become ossified, the questions become rhetorical, and the education ceases to cultivate the child’s capacities. Ray Ravaglia, Forbes, 1 Oct. 2024 Brought up by unfriendly, ossifying nuns, ancient retainers, and countless skeletons, Gideon is ready to abandon a life of servitude and an afterlife as a reanimated corpse. Brianne Kane, Scientific American, 27 Sep. 2024 But the only time the new movie feels like its joints haven’t ossified is in a few scenes with L.A. oddballs like Nasim Pedrad’s ditzy real estate agent or Affion Crockett as a country club valet who’s not falling for Axel’s shtick. Ty Burr, Washington Post, 3 July 2024 See all Example Sentences for ossify 

Word History

Etymology

Latin oss-, os + English -ify

First Known Use

1699, in the meaning defined at transitive sense 1

Time Traveler
The first known use of ossify was in 1699

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Dictionary Entries Near ossify

Cite this Entry

“Ossify.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ossify. Accessed 30 Dec. 2024.

Kids Definition

ossify

verb
os·​si·​fy ˈäs-ə-ˌfī How to pronounce ossify (audio)
ossified; ossifying
1
: to become or change into bone or bony tissue
2
: to become or make hardened or set in one's ways

Medical Definition

ossify

verb
os·​si·​fy ˈäs-ə-ˌfī How to pronounce ossify (audio)
ossified; ossifying

intransitive verb

: to form or be transformed into bone
cartilage ossified postnatally

transitive verb

: to change (as cartilage) into bone
osteoblasts ossify the tissue

More from Merriam-Webster on ossify

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