n.
Pronunciation: ri- ' ti-ky ə -l ə m
Function: noun
Etymology: New Latin, from Latin, small net
Date: circa 1658
1 : the second compartment of the stomach of a ruminant in which folds of the mucous membrane form hexagonal cells ― compare ABOMASUM , OMASUM , RUMEN
2 : a reticulate structure : NETWORK