Definition of acritarch
: any of a group of fossil one-celled marine planktonic organisms of uncertain and possibly various taxonomic affinities held to represent the earliest known eukaryotes
Rhymes with acritarch
accent mark, antiquark, cutty sark, deutsche mark, disembark, double-park, great white shark, hierarch, Joan of Arc, make one's mark, matriarch, meadowlark, metalmark, minipark, oligarch, paperbark, patriarch, Plimsoll mark, question mark, service mark, stringybark, telemark, thresher shark, tiger shark, trierarch, watermark, water park
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Britannica.com: Encyclopedia article about acritarch
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