protoctist

/ (prəʊˈtɒktɪst) /

noun

(in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds

Word Origin for protoctist

C19: from New Latin protoctista, perhaps from Greek prototokos first born

Medical definitions for protoctist

protoctist
[ prōtək-tĭst ]

n.

A eukaroytic, unicellular organism belonging to the kingdom Protoctista, which includes protozoa, slime molds, and certain algae.

Scientific definitions for protoctist

protoctist
[ prə-tŏktĭst ]

See protist.