me·so·some noun \-ˌsōm\
: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes
First Known Use of MESOSOME
me·so·some noun \ˈmez-ə-ˌsōm, ˈmēz-, ˈmēs-, ˈmes-\ (Medical Dictionary)
: an organelle of bacteria that appears in electron micrographs as an invagination of the plasma membrane and is a site of localization of respiratory enzymes
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