epiphysis

noun

epiph·​y·​sis i-ˈpi-fə-səs How to pronounce epiphysis (audio)
plural epiphyses i-ˈpi-fə-ˌsēz How to pronounce epiphysis (audio)
1
: a part or process of a bone that ossifies separately and later becomes ankylosed to the main part of the bone
especially : an end of a long bone
2

Examples of epiphysis in a Sentence

Recent Examples on the Web Meanwhile, the epiphyses on the ischium and the ends of the femur and shin bone (tibia) were well-developed but hadn’t yet fused—in other words, DH7 wasn’t a very young child but was definitely still growing. Kiona N. Smith, Ars Technica, 10 Apr. 2020 Vidyadhar Upasani, a pediatric orthopedist at Rady Children’s Hospital in San Diego, uses 3-D printing to help plan intricate bone procedures to treat, for example, slipped capital femoral epiphysis, the most common hip disorder in adolescents. Erin Blakemore, Washington Post, 11 June 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'epiphysis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

New Latin, from Greek, growth, from epiphyesthai to grow on, from epi- + phyesthai to grow, middle voice of phyein to bring forth — more at be

First Known Use

1634, in the meaning defined at sense 1

Time Traveler
The first known use of epiphysis was in 1634

Dictionary Entries Near epiphysis

Cite this Entry

“Epiphysis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epiphysis. Accessed 16 Jul. 2024.

Medical Definition

epiphysis

noun
epiph·​y·​sis i-ˈpif-ə-səs How to pronounce epiphysis (audio)
plural epiphyses -ˌsēz How to pronounce epiphysis (audio)
1
: a part or process of a bone that ossifies separately and later becomes ankylosed to the main part of the bone
especially : the usually rounded end of the shaft of a long bone that is composed mainly of cancellous bone covered by a thin layer of compact bone compare diaphysis
2

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