area opaca

[oh-pey-kuh]

ar·ea o·pa·ca

[oh-pey-kuh]
noun Embryology.
the opaque area of the blastoderm surrounding the area pellucida.

Origin:
< Neo-Latin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Area opaca has a plethora of syllables.
So is dichlorodiphenyltrichloroethane. Does it mean:
a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.
a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells.
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