spheroplast

[ sfeer-uh-plast, sfer- ]
/ ˈsfɪər əˌplæst, ˈsfɛr- /

noun Bacteriology.

a Gram-negative bacterial cell with a cell wall that has been altered or is partly missing, resulting in a spherical shape.

Origin of spheroplast

First recorded in 1915–20; sphero- + -plast