semiminor axis


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sem′i•mi′nor ax′is

(ˈsɛm iˈmaɪ nər, ˈsɛm aɪ-, ˌsɛm i-, ˌsɛm aɪ-)
n.
1. one half the minor axis of an ellipse.
2. one half the minor axis of the ellipse that one celestial body describes around another.
[1925–30]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.semiminor axis - one-half the minor axis of an ellipse
axis - a straight line through a body or figure that satisfies certain conditions
minor axis - the shorter or shortest axis of an ellipse or ellipsoid
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References in periodicals archive ?
where a and b are the semimajor axis and semiminor axis, respectively.
The sizes of 3D grain can be described by the equivalent radius r, semiminor axis radius [r.sub.2], semimajor axis radius [r.sub.1], and major axis radius [r.sub.3].
We defined waist circumference as the circumference of the cross section of the abdomen and the semiminor axis as the US-measured distance from the skin to the posterior wall of the aorta (Figure 1(c)).
(3) If the semimajor axis [alpha] and semiminor axis [beta] of [E.sub.i] do not satisfy [alpha]/[beta] [less than or equal to] [r.sub.max], then drop [e.sub.i], where [r.sub.max] is the maximum ratio of the semimajor axis and the semiminor axis.
We find the semimajor axis, semiminor axis, and center of the ellipse.