| 释义 |
dimetient, a. and n.|daɪˈmiːʃɪənt|
[ad. L. dīmetient-em, pr. pple. of dīmetīrī to measure out: see dimense.]
A. adj.
†1. That measures across through the centre: dimetient line = diameter. Obs.
1601Holland Pliny I. 15 The dimetient line, or diameter, taketh a third part of the circumference, and little lesse than a seuenth part. 1603― Plutarch's Mor. 1045 That the Diameter or Dimetient line of the earth is triple to that of the moone. 1729G. Shelvocke Artillery iv. 264 The Orifice of the Chamber, whose Dimetient Line is exactly 1/3 of the whole Diameter.
2. Math. That expresses the dimension.
1842De Morgan Diff. & Int. Calculus 323 Usually xa is the dimetient function of Algebra; we must come to the consideration of transcendental quantities before we find a function which is not of the same order as xa, for some value or other of a; and then between xa and xa+ k may be found an infinite number of functions, higher in dimension than the first, and lower than the second, however small k may be.
†B. n. (Short for dimetient line). = diameter.
[1570Billingsley Euclid vi. xxiv. 172 In euery parallelogramme, the parallelogrammes about the dimeciens are lyke vnto the whole.] 1571Digges Pantom. i. Elem. B ij b, A Right line drawne through the Centre vnto the Circumference of both sides, is named his Diameter or Dimetient. 1690Leybourn Curs. Math. 328 The Dimetient of a Sphere. |