...In the upper sketch the clawis retracted or sheathed; in the lower it is protruded as in the actof striking... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Its size increases to such an extent, thatwhen the erection subsides, it cannot be retracted...
Dinks, Mayhew, and Hutchinson 「The Dog」
...Absconditus: hidden, concealed; retracted intoanother...
John. B. Smith 「Explanation of Terms Used in Entomology」
...At these times some males apparently were so frightened by being handledthat the testes were retracted into the inguinal canals...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Autopsy revealed a vestigeof the retracted yolk sac, approximately one millimeter in diameter,on the small intestine...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...The prepuce is a fold of the internal membrane of the verge of the anus, as in the bird; and the penis, when retracted, is entirely concealed...
David Collins 「An Account of the English Colony in New South Wales, Vol. 2」
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