uniplanaradj.

Brit.

/ˌjuːnɪˈpleɪnə/, U.S.

/ˌjunəˈpleɪnər/

Origin: Formed within English, by compounding. Etymons: uni- comb. form, planar adj.

Etymology: < uni- comb. form + planar adj., after uniplane adj. Compare earlier biplanar adj.

1. Mathematics. Designating a point at which the tangents to a curve coincide so as to form a single line or plane. Cf. unode n. Now rare.Frequently in uniplanar node.

ΘΚΠ

the world > relative properties > number > geometry > surface > [adjective] > relating to plane surfaces > characterized by or situated on specific planes

biplanar1849

coplanar1862

uniplanar1863

trisquare1889

orthotropic1943

1863 Philos. Trans. (Royal Soc.) 153 230 A biplanar node..becomes uniplanar when h vanishes.

1870 Q. Jrnl. Pure & Appl. Math. 10 28 This is a cubic surface, Prof. Schläfli's Case XX., having a uniplanar point x = 0, y = 0, z = 0.

1871 Philos. Trans. (Royal Soc.) 161 666 A cyclide of any class can have but three species of node (namely, the conic node, the biplanar node, and the uniplanar node).

1927 E. C. Kemble in Bull. National Res. Council No. 61. 307 The surface F may be transformed into a sextic surface in S² having a uniplanar triple point.

1979 Geometriae Dedicata 8 262 A point v ϵ F is a unode (uniplanar node) if v is irregular in F and τ (v ) is a plane.

2009 F. Sullivan tr. M. C. Beltrametti et al. Lect. Curves, Surfaces & Projective Varieties v. 161 If g = g', P is a uniplanar point.

2. Esp. of motion: lying or occurring in one plane, confined to one plane; of or relating to motion of this kind.

ΘΚΠ

the world > movement > [adjective] > in one plane (of motion)

uniplanar1882

1882 G. M. Minchin Uniplanar Kinematics of Solids & Fluids 1 By uniplanar motion, or one-plane motion, is understood..motion which takes place in one plane or parallel to one plane.

1921 7th Ann. Rep. National Advisory Comm. Aeronaut. (U.S.) 176 In laboratories, however, the infinitely long wing, or uniplanar flow, may be secured with good approximation.

1940 G. S. Carter Gen. Zool. Invertebr. iv. 80 Movement of cilia and flagella... A uniplanar beat might result from contraction passing up one side of the sheath.

1997 Jrnl. Strain Anal. Engin. Design 32 435 The method is potentially applicable to..other tubular joint types, both uniplanar and multiplanar.

2006 C. M. Court-Brown et al. Trauma xxx. 405/2 Displacement is uniplanar and can be sagittal, coronal, or both.

This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022).

单词	uniplanar
释义	uniplanaradj. Brit. /ˌjuːnɪˈpleɪnə/, U.S. /ˌjunəˈpleɪnər/ Origin: Formed within English, by compounding. Etymons: uni- comb. form, planar adj. Etymology: < uni- comb. form + planar adj., after uniplane adj. Compare earlier biplanar adj. 1. Mathematics. Designating a point at which the tangents to a curve coincide so as to form a single line or plane. Cf. unode n. Now rare.Frequently in uniplanar node. ΘΚΠ the world > relative properties > number > geometry > surface > [adjective] > relating to plane surfaces > characterized by or situated on specific planes biplanar1849 coplanar1862 uniplanar1863 trisquare1889 orthotropic1943 1863 Philos. Trans. (Royal Soc.) 153 230 A biplanar node..becomes uniplanar when h vanishes. 1870 Q. Jrnl. Pure & Appl. Math. 10 28 This is a cubic surface, Prof. Schläfli's Case XX., having a uniplanar point x = 0, y = 0, z = 0. 1871 Philos. Trans. (Royal Soc.) 161 666 A cyclide of any class can have but three species of node (namely, the conic node, the biplanar node, and the uniplanar node). 1927 E. C. Kemble in Bull. National Res. Council No. 61. 307 The surface F may be transformed into a sextic surface in S² having a uniplanar triple point. 1979 Geometriae Dedicata 8 262 A point v ϵ F is a unode (uniplanar node) if v is irregular in F and τ (v ) is a plane. 2009 F. Sullivan tr. M. C. Beltrametti et al. Lect. Curves, Surfaces & Projective Varieties v. 161 If g = g', P is a uniplanar point. 2. Esp. of motion: lying or occurring in one plane, confined to one plane; of or relating to motion of this kind. ΘΚΠ the world > movement > [adjective] > in one plane (of motion) uniplanar1882 1882 G. M. Minchin Uniplanar Kinematics of Solids & Fluids 1 By uniplanar motion, or one-plane motion, is understood..motion which takes place in one plane or parallel to one plane. 1921 7th Ann. Rep. National Advisory Comm. Aeronaut. (U.S.) 176 In laboratories, however, the infinitely long wing, or uniplanar flow, may be secured with good approximation. 1940 G. S. Carter Gen. Zool. Invertebr. iv. 80 Movement of cilia and flagella... A uniplanar beat might result from contraction passing up one side of the sheath. 1997 Jrnl. Strain Anal. Engin. Design 32 435 The method is potentially applicable to..other tubular joint types, both uniplanar and multiplanar. 2006 C. M. Court-Brown et al. Trauma xxx. 405/2 Displacement is uniplanar and can be sagittal, coronal, or both. This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022). < adj.1863
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