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| the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language). |
| a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells. |
extraembryonic ex·tra·em·bry·on·ic (ěk'strə-ěm'brē-ŏn'ĭk)
adj.
Located outside of the embryonic body.