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testa

[tes-tuh]

noun, plural -tae

[-tee] . Botany.

the outer, usually hard, integument or coat of a seed.

Origin:
1790–1800; < Neo-Latin, Latin; see test²

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Testa is always a great word to know.

So is chlorophyll. Does it mean:

green coloring of leaves and plants needed for photosynthesis

method of forming complex organic materials using sunlight as energy source

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Collins

World English Dictionary

testa (ˈtɛstə)

—n , pl -tae
	a hard protective outer layer of the seeds of flowering plants; seed coat

[C18: from Latin: shell; see test²]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage

Science Dictionary

testa (těs'tə) Pronunciation Key
Plural testae (těs'tē')
See seed coat.

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testa

tes·ta