Dertrotheca definitions

Dertrotheca

• (n.) The horny covering of the end of the bill of birds.
Found on http://thinkexist.com/dictionary/meaning/dertrotheca/

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Dertrotheca

Der`tro·the'ca noun [ New Latin , from Greek ... beak + ... box, case.] (Zoology) The horny covering of the end of the bill of birds.
Found on http://www.encyclo.co.uk/webster/D/44

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