| 释义 |
▪ I. osculate, a.|ˈɒskjʊlət|
[f. L. oscul-um + -ate2.]
Furnished with oscula: see osculum 3.
1857Mayne Expos. Lex., Osculatus, having well marked little mouths or suckers, as the Tænia osculata: osculate.
▪ II. osculate, v.|ˈɒskjʊleɪt|
[f. ppl. stem of L. osculārī to kiss, f. osculum little mouth, kiss.]
1. trans. To kiss, salute with contact of the lips; intr. to kiss each other. rare.
1656Blount Glossogr., Osculate, to kiss, to love heartily, to imbrace. 1873St. Paul's Mag. Mar. 259 Professedly prudish..they..mutter, nod, osculate.
2. trans. To bring into close contact or union.
1671Grew Anat. Plants ii. §16 The two main Branches of the Lobes both meeting, and being osculated together, are thus dispos'd into one round and tubular Trunk.
3. intr. To come into close contact or union; to have close contact with each other, to come together. In Nat. Hist. To have contact through an intermediate species or genus (cf. osculant).
1737Bracken Farriery Impr. (1757) II. 281 You may..cause..the Blood-Vessels to osculate, or join together, so that the Wound may be closed in its whole Length. 1849F. W. Newman Soul vi. 209 Though in their higher development the Sciences osculate, yet (to the human mind) their bases are quite independent. 1858Froude Hist. Eng. xxiii. IV. 478 Osculating in separate points with the deeper impulses of the age. 1866Sat. Rev. 21 Apr. 479/2 To show how these countries crossed, osculated, and reacted upon each other.
4. Math. trans. To have contact of a higher order with, esp. the highest contact possible for two loci; to have three or more coincident points in common with; intr. (for refl.) to osculate each other: as two curves, two surfaces, or a surface and a curve.
1727–41Chambers Cycl. s.v. Osculum, A circle described on the point C, as a centre,..with the radius of the evolute MC, is said to osculate, kiss, the curve described by evolution, in M; which point M is called by the inventor Huygens, the osculum of the curve. 1841J. R. Young Math. Dissert. ii. 52 Two surfaces osculate at a point when they have a common indicatrix there. 1885C. Leudesdorf Cremona's Proj. Geom. 189 Three of the four points of intersection of the conics lie indefinitely near to one another, and may be said to coincide in the point A; and the conics are said to osculate at the point A. 1896S. L. Loney Coord. Geom. (ed. 2) §428 Contact of the third order is..all that two conics can have, and then they are said to osculate one another... In general one curve osculates another when it has the highest possible order of contact with the second curve.
Hence ˈosculating ppl. a., usually in sense 4, as osculating osculating circle, osculating curve, osculating plane, osculating sphere.
1816tr. Lacroix's Diff. & Int. Calculus 108 This circle, called the osculating circle, will be the limit of all the others. 1841J. R. Young Math. Dissert. ii. 64 The surface in the direction of that line will lie more closely to the osculating sphere. 1865Pall Mall G. 25 May 1 Lord Granville..is, as it were, to use a mathematical metaphor, an osculating plane to all the different shades of aristocratic and cultivated liberalism. 1879Thomson & Tait Nat. Phil. I. i. §8 The plane of the curvature on each side of any point of a tortuous curve..the Osculating Plane of the curve at that point. |