DERÆ´UM, _n._ Bottom or lower part of the neck. (Little used.)
DER´MAL, _a._ Pertaining to the skin; made of skin; cutaneous.
DER´MAL APPEN´DAGE. Any outgrowth from the skin.
DERTROTHE´CA, _a._ Covering of end of bill.
A History of North American Birds; Land Birds; Vol. 3 of 3 · 第 344 / 607 题