retractile

Example Sentences

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There is also in some genera a median retractile sensory papilla on the dorsal posterior surface above the rectum, not covered by the cuticle.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" by Various

The arteries are highly elastic, being extensile and retractile both in length and breadth.

From Special Report on Diseases of the Horse by Michener, Charles B.

Most species have sharp, curved claws, often retractile between some of the lamellae or into a special sheath.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

The Carchesium differs from the common Vorticella, by branching like a tree, but the stems are all retractile, although the trunk seldom exercises the power.

From Marvels of Pond-life A Year's Microscopic Recreations by Slack, Henry J.

Feet subplantigrade, with five well-developed toes on each, carrying sharp, compressed, retractile claws.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4 "Carnegie Andrew" to "Casus Belli" by Various