reentrant

American  

[ree-en-truhnt] / riˈɛn trənt /

Or re-entrant

adjective

1. reentering or pointing inward.

   a reentrant angle.

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noun

1. a reentering angle or part.

2. a person or thing that reenters or returns.

   Reentrants to the engineering program must take the introductory course again.

3. Physical Geography. a prominent indentation in a coastline.

Etymology

Origin of reentrant

First recorded in 1775–85; re- + entrant

Example Sentences

Abnormalities in cardiac impulse propagation underlie lethal reentrant arrhythmias, including ventricular fibrillation.

From Science Magazine • Sep. 28, 2011

Frowning hills and rolling sand dunes are to be thrown bodily into the reentrant bay.

From The Little Lady of Lagunitas A Franco-Californian Romance by Savage, Richard

The trend and appearance of the reentrant side walls connecting the present entrance with the straight face of the cliff indicates that the earth in the cavern has a depth of 30 feet or more.

From Archeological Investigations Bureau of American Ethnology, Bulletin 76 by Fowke, Gerard

It was not merely sheer, but reentrant, making a huge, arched, shallow cave, several hundred feet high, and at least a hundred—perhaps a hundred and fifty—feet deep, the overhang being enormous.

From A Book-Lover's Holidays in the Open by Roosevelt, Theodore

But, oh! my little friends of the north; my struggling, strenuous, introspective, self-analysing, autoscopic, and generally reentrant friends, who spout the 'Hue!

From The Path to Rome by Belloc, Hilaire