PARABOLICALLY
Etymology
Adverb
parabolically (comparative more parabolically, superlative most parabolically)
In the form of a parabola.
By means of a parable.
Source: Wiktionary
Par`a*bol"ic*al*ly, adv.
1. By way of parable; in a parabolic manner.
2. In the form of a parabola.
PARABOLIC
Par`a*bol"ic, Par`a*bol"ic*al, a. Etym: [Gr. parabolique. See
Parable.]
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.
PARABOLICAL
Par`a*bol"ic, Par`a*bol"ic*al, a. Etym: [Gr. parabolique. See
Parable.]
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’s Unabridged Dictionary 1913 Edition