mesosome

[ mez-uh-sohm, mes-, mee-zuh-, -suh- ]
/ ˈmɛz əˌsoʊm, ˈmɛs-, ˈmi zə-, -sə- /

noun

the anterior portion of the abdomen in arachnids.
a whorled structure extending inward from the cell membrane in Gram-positive bacteria and containing enzymes for cellular respiration.

Origin of mesosome

First recorded in 1955–60; meso- + -some3

Words nearby mesosome

mesosalpinx, mesoscale, mesosigmoid, mesosigmoiditis, mesosigmoidopexy, mesosome, mesosphere, mesosystolic, mesotendineum, mesothelioma, mesothelium