n.
Pronunciation: ' me-z ə - ˌ fil, ' m ē -, -s ə -
Function: noun
Etymology: New Latin mesophyllum, from mes- + Greek phyllon leaf ― more at BLADE
Date: 1848
: the parenchyma between the epidermal layers of a foliage leaf
– me · so · phyl · lic \ ˌ me-z ə - ' fi-lik, ˌ m ē -, -s ə - \ or me · so · phyl · lous \ -l ə s \ adjective