prolate

[proh-leyt]
adjective
  1. elongated along the polar diameter, as a spheroid generated by the revolution of an ellipse about its longer axis (opposed to oblate).

Origin of prolate

1685–95; < Latin prōlātus, past participle of prōferre to bring forward, extend; see pro-1, oblate1
Related formspro·late·ly, adverbpro·late·ness, noun
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British Dictionary definitions for prolate

prolate

adjective
  1. having a polar diameter of greater length than the equatorial diameterCompare oblate 1
Derived Formsprolately, adverbprolateness, noun

Word Origin for prolate

C17: from Latin prōferre to enlarge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012