n.
Pronunciation: ' l ī -s ə - ˌ s ō m
Function: noun
Etymology: International Scientific Vocabulary lys- + 3 -some
Date: 1955
: a saclike cellular organelle that contains various hydrolytic enzymes ― see CELL illustration
– ly · so · som · al \ ˌ l ī -s ə - ' s ō -m ə l \ adjective