n.
Pronunciation: ˌ in-tü- ' me-s ə n(t)s, -tyu ̇ -
Function: noun
Etymology: French, from Latin intumescere to swell up, from in- + tumescere to swell ― more at TUMESCENCE
Date: 1650
: a swollen or enlarged part of a plant or animal also : the process of swelling up or enlarging