PARAMETERS
Noun
parameters
plural of parameter
Source: Wiktionary
PARAMETER
Pa*ram"e*ter, n. Etym: [Pref. para- + -meter: cf. F. paramètre.]
1.
(a) (Math.) A term applied to some characteristic magnitude whose
value, invariable as long as one and the same function, curve,
surface, etc., is considered, serves to distinguish that function,
curve, surface, etc., from others of the same kind or family. Brande
& C.
(b) Specifically (Conic Sections), in the ellipse and hyperbola, a
third proportional to any diameter and its conjugate, or in the
parabola, to any abscissa and the corresponding ordinate.
Note: The parameter of the principal axis of a conic section is
called the latus rectum.
2. (Crystallog.)
Definition: The ratio of the three crystallographic axes which determines
the position of any plane; also, the fundamental axial ratio for a
given species.
Source: Webster’s Unabridged Dictionary 1913 Edition