protoctist

World English Dictionary
protoctist (prəʊˈtɒktɪst)
 
n
(in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds
 
[C19: from New Latin protoctista, perhaps from Greek prototokos first born]

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Protoctist is always a great word to know.
So is zedonk. Does it mean:
the offspring of a zebra and a donkey.
a scrap or morsel of food left at a meal.
American Heritage
Medical Dictionary

protoctist pro·toc·tist (prō'tək-tĭst)
n.
A eukaroytic, unicellular organism belonging to the kingdom Protoctista, which includes protozoa, slime molds, and certain algae.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
protoctist   (prə-tŏk'tĭst)  Pronunciation Key 
See protist.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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