orthotropyn.

Brit.

/ɔːˈθɒtrəpi/, U.S.

/ɔrˈθɑtrəpi/

Origin: Formed within English, by compounding. Etymons: ortho- comb. form, -tropy comb. form.

Etymology: < ortho- comb. form + -tropy comb. form. In sense 1 after orthotropous adj. In sense 2 after orthotropic adj. 2.

1. Botany. The condition of being orthotropous (orthotropous adj. 1).

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > condition of

anatropy1848

orthotropy1848

1848 J. Lindley Introd. Bot. (ed. 4) II. 41 From the frequent examination of the passage from orthotropy to anatropy in ovules, I am convinced that the umbilical cord is never soldered to the ovulary leaf.

1969 Ann. Missouri Bot. Garden 56 130 Orthotropy occurs in more specialized groups with solitary ovules and basal placentation.

1994 Plant Systematics & Evol. 193 208 The ovules of the members of the Rafflesiaceae show..a change from anatropy towards orthotropy and a change from bitegmy to unitegmy.

2. Engineering. The condition of being orthotropic (orthotropic adj. 2).

ΘΚΠ

the world > space > shape > symmetry or regularity > [noun] > orthotropic condition

orthotropy1955

the world > matter > constitution of matter > softness > pliableness > [noun] > elasticity > condition of having planes of elastic symmetry

orthotropy1955

the world > relative properties > number > geometry > surface > [noun] > plane > having number of

orthotropy1955

1955 Proc. Royal Soc. A. 229 122 Symmetries which exist in a material may impose invariance conditions on W, and the more common cases of orthotropy and transverse isotropy have been examined by Green & Zerna.

1966 F. J. Plantema Sandwich Constr. v. 118 Numerical results have been computed only for a few typical cases of orthotropy corresponding to corrugated-core sandwich plates and sandwich plates having standard glass-fabric laminate faces.

2001 Forest Products Jrnl. (Nexis) 51 49 In the first phase of ongoing research investigating the anatomical direction-dependent mechanical properties of Appalachian and European hardwood species, the orthotropy of shear strength is under exploration.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthotropy
释义	orthotropyn. Brit. /ɔːˈθɒtrəpi/, U.S. /ɔrˈθɑtrəpi/ Origin: Formed within English, by compounding. Etymons: ortho- comb. form, -tropy comb. form. Etymology: < ortho- comb. form + -tropy comb. form. In sense 1 after orthotropous adj. In sense 2 after orthotropic adj. 2. 1. Botany. The condition of being orthotropous (orthotropous adj. 1). ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > condition of anatropy1848 orthotropy1848 1848 J. Lindley Introd. Bot. (ed. 4) II. 41 From the frequent examination of the passage from orthotropy to anatropy in ovules, I am convinced that the umbilical cord is never soldered to the ovulary leaf. 1969 Ann. Missouri Bot. Garden 56 130 Orthotropy occurs in more specialized groups with solitary ovules and basal placentation. 1994 Plant Systematics & Evol. 193 208 The ovules of the members of the Rafflesiaceae show..a change from anatropy towards orthotropy and a change from bitegmy to unitegmy. 2. Engineering. The condition of being orthotropic (orthotropic adj. 2). ΘΚΠ the world > space > shape > symmetry or regularity > [noun] > orthotropic condition orthotropy1955 the world > matter > constitution of matter > softness > pliableness > [noun] > elasticity > condition of having planes of elastic symmetry orthotropy1955 the world > relative properties > number > geometry > surface > [noun] > plane > having number of orthotropy1955 1955 Proc. Royal Soc. A. 229 122 Symmetries which exist in a material may impose invariance conditions on W, and the more common cases of orthotropy and transverse isotropy have been examined by Green & Zerna. 1966 F. J. Plantema Sandwich Constr. v. 118 Numerical results have been computed only for a few typical cases of orthotropy corresponding to corrugated-core sandwich plates and sandwich plates having standard glass-fabric laminate faces. 2001 Forest Products Jrnl. (Nexis) 51 49 In the first phase of ongoing research investigating the anatomical direction-dependent mechanical properties of Appalachian and European hardwood species, the orthotropy of shear strength is under exploration. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1848
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