parabolic

1. a. Alt. of Parabolical Source: opted

2. adj. resembling or expressed by parables Source: wordnet

3. adj. having the form of a parabola Source: wordnet

4. 1. Of the nature of a parable; expressed by a parable or figure; allegorical; as, parabolical instruction. 2. Etym: [From Parabola.] (Geom.) (a) Having the form or nature of a parabola; pertaining to, or resembling, a parabola; as, a parabolic curve. (b) Generated by the revolution of a parabola, or by a line that moves on a parabola as a directing curve; as, a parabolic conoid. Parabolic conoid, a paraboloid; a conoid whose directing curve is a parabola. See Conoid. -- Parabolic mirror (Opt.), a mirror having a paraboloidal surface which gives for parallel rays (as those from very distant objects) images free from aberration. It is used in reflecting telescopes. -- Parabolic spindle, the solid generated by revolving the portion of a parabola cut off by a line drawn at right angles to the axis of the curve, about that line as an axis. -- Parabolic spiral, a spiral curve conceived to be formed by the periphery of a semiparabola when its axis is wrapped about a circle; also, any other spiral curve having an analogy to the parabola. Source: webster

5. j:100 a. resembling or expressed by parables s. having the form of a parabola Source: ecdict

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