noun
small fragile bone making up part of the front inner walls of each eye socket and providing room for the passage of the lacrimal ducts
• Part Holonyms: ↑eye socket, ↑orbit, ↑cranial orbit, ↑orbital cavity
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noun : a small thin bone making up part of the front inner wall of each orbit and giving passage to the lacrimal duct
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Anat.
a small, thin, membrane bone forming the front part of the inner wall of each orbit. Also called lacrimal.
[1850-55]
Useful english dictionary. 2012.