bacteriochlorophyll

[ bak-teer-ee-oh-klawr-uh-fil, -klohr- ]
/ bækˌtɪər i oʊˈklɔr ə fɪl, -ˈkloʊr- /

noun Biochemistry.

a pale blue-gray form of chlorophyll that is unique to the photosynthetic but anaerobic purple bacteria.

Origin of bacteriochlorophyll

First recorded in 1935–40; bacterio- + chlorophyll