American Heritage Dictionary
(1)
Century Dictionary
(21)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
A similar difficulty takes place in figuring specula for telescopes; the parabola is the surface which separates the hyperbolic from the elliptic figure, and is the most difficult to form.— On the Economy of Machinery and Manufactures
"The properties of the spiral, and the quadrature of the parabola were added to ancient geometry by Archimedes, the last being a great step in the progress of the science, since it was the first curvilineal space legitimately squared."— The Old Roman World, : the Grandeur and Failure of Its Civilization.
The focus of the parabola is here for the first time indicated, a circumstance which has escaped the notice of scientific historians.] 45.— The Private Diary of Dr. John Dee And the Catalog of His Library of Manuscripts
The axis of a parabola is along the line— LearnHub Activities
Parabola has been looked up 452 times, favorited once, listed 46 times, and commented on 0 times.

American Heritage Dictionary (1)
Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about twice a year.
Recent Lookupsdeborah · Puella · egregious · brick-lined · three-fifths |
Recent FavoritesTelePalmter · Espoo · stick-to-it-iveness · supine · doxastic |
Recent Pronunciationsmilosrdenstvi · lichen-covered · futon · sagacity · monoragngocious |