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epiphysis

American  
[ih-pif-uh-sis] / ɪˈpɪf ə sɪs /

noun

Anatomy.

plural

epiphyses
  1. a part or process of a bone separated from the main body of the bone by a layer of cartilage and subsequently uniting with the bone through further ossification.

  2. pineal gland.


epiphysis British  
/ ˌɛpɪˈfɪzɪəl, ɪˈpɪfɪsɪs /

noun

  1. the end of a long bone, initially separated from the shaft (diaphysis) by a section of cartilage that eventually ossifies so that the two portions fuse together

  2. Also called: epiphysis cerebri.  the technical name for pineal gland

"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

Other Word Forms

  • epiphyseal adjective
  • epiphysial adjective

Etymology

Origin of epiphysis

1625–35; < New Latin < Greek epíphysis a growth upon, equivalent to epi- epi- + phýsis growth ( phȳ́ ( ein ) to make grow, bring forth, produce + -sis -sis )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The cells, which are pushed from the epiphysis, mature and are destroyed by calcification.

From Textbooks • Jun. 9, 2022

This area of the inferior end of the bone is labeled the epiphysis.

From Textbooks • Jan. 1, 2015

The internal anatomy of the epiphysis is revealed.

From Textbooks • Jan. 1, 2015

The diaphysis contains compact bone surrounding a medullary cavity containing bone marrow On either end is an epiphysis containing cancellous or spongy bone.

From Textbooks • Jan. 1, 2015

Up to the seventeenth year, the epiphysis, which is entirely intra-articular, may be separated.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander