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[bur-suh] /ˈbɜr sə/
noun, plural bursae
[bur-see] /ˈbɜr si/ (Show IPA),
Anatomy, Zoology. a pouch, sac, or vesicle, especially a sac containing synovia, to facilitate motion, as between a tendon and a bone.
Origin of bursa
1795-1805; < New Latin, Late Latin bursa a bag, pouch, purse < Greek býrsa a skin, hide
Related forms
bursal, adjective
[bur-seyt] /ˈbɜr seɪt/ (Show IPA),
postbursal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for bursate


noun (pl) -sae (-siː), -sas
a small fluid-filled sac that reduces friction between movable parts of the body, esp at joints
(zoology) any saclike cavity or structure
Derived Forms
bursal, adjective
Word Origin
C19: from Medieval Latin: bag, pouch, from Greek: skin, hide; see purse


a city in NW Turkey: founded in the 2nd century bc; seat of Bithynian kings. Pop: 1 413 000 (2005 est) Former name Brusa
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
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Word Origin and History for bursate



by 1788 as an English word in physiology, shortened from medieval Latin bursa mucosa "mucus pouch," from Medieval Latin bursa "bag, purse," from Late Latin bursa, variant of byrsa "hide," from Greek byrsa "hide, skin, wineskin, drum," of unknown origin; cf. purse (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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bursate in Medicine

bursa bur·sa (bûr'sə)
n. pl. bur·sas or bur·sae (-sē)
A sac or saclike bodily cavity, especially one containing a viscous lubricating fluid and located between a tendon and a bone or at points of friction between moving structures.

bur'sal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bursate in Science
Plural bursae (bûr'sē) or bursas
A flattened sac containing a lubricating fluid that reduces friction between two moving structures in the body, as a tendon and a bone.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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bursate in Culture
bursa [(bur-suh)]

A fluid-filled sac or cavity that reduces friction between the bones, ligaments, and tendons in the body's joints.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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