adj.
Pronunciation: ' mem-br ə -n ə s
Function: adjective
Date: 1597
1 : of, relating to, or resembling membrane
2 : thin, pliable, and often somewhat transparent < membranous leaves>
3 : characterized or accompanied by the formation of a usually abnormal membrane or membranous layer < membranous croup>
– mem · bra · nous · ly adverb