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lumen2

Syllabification: (lu·men)
Pronunciation: /ˈlo͞omən/
Definition of lumen

noun (plural lumina /-mənə/)

Anatomy
  • the central cavity of a tubular or other hollow structure in an organism or cell.

Derivatives

luminal

Pronunciation: /-mənl/
adjective

Origin:

late 19th century: from Latin, literally 'opening'

lumen in other Oxford dictionaries

Definition of lumen in the British & World English dictionary

Nearby words

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