† parabolastern.
Mathematics. Obsolete.
A curve analogous to a parabola; = parabola n. 1b.
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parabolaster1656
paraboloid1656
parabola1664
1656 T. Hobbes Six Lessons Ep. Ded. in Elements Philos. I have exhibited and demonstrated the proportion of the Parabola and Parabolasters to the Parallelograms of the same height and base.
1670 J. Collins Let. in S. P. Rigaud & S. J. Rigaud Corr. Sci. Men 17th Cent. (1841) (modernized text) II. 199 A pure unaffected biquadratic parabolaster.
1684 Philos. Trans. (Royal Soc.) 14 581 And thence..curves deriv'd, which some call..parabolasters.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online December 2019).
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