pseudovectorn.adj.

(in sense A.)Brit.

/ˈs(j)uːdə(ʊ)ˌvɛktə/, U.S.

/ˈsudoʊˌvɛktər/ (in sense B.)Brit.

/ˌs(j)uːdə(ʊ)ˈvɛktə/, U.S.

/ˌsudoʊˈvɛktər/

Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, vector n.

Etymology: < pseudo- comb. form + vector n.

Mathematics and Physics.

A. n.

A vector whose sign is unchanged when the signs of all its components are changed.An example is the vector product of two vectors: changing the sign of both vectors leaves their vector product unchanged.

ΘΚΠ

the world > matter > physics > quantum theory > quantum mechanics > quantum field theory > [noun] > pseudovector

pseudovector1922

the world > relative properties > number > mathematical number or quantity > tensor > [noun] > vector > specific type of

R1675

radius vector1740

spin vector1882

axial vector1903

polar vector1903

free vector1904

position vector1906

four-vector1914

pseudovector1922

row vector1928

1922 Proc. Royal Soc. A. 102 282 There exists a true Poynting vector... We shall examine whether there is not in addition a Poynting pseudo-vector.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 413/1 In general, vectors associated with rotations belong to the category of pseudovectors.

1992 Ann. Rev. Fluid Mech. 24 305 The pseudo-vector D^(a) is nonzero only if the turbulence lacks reflectional symmetry.

B. adj.

Relating to or of the nature of a pseudovector; mathematically described or represented by a pseudovector.

ΘΚΠ

the world > relative properties > number > mathematical number or quantity > tensor > [adjective] > of nature of a vector > of specific vector(s)

orthogonal1913

pseudovector1939

1939 Proc. Royal Soc. A. 173 106 The above schemes may be equally well taken to describe the dual theories, i.e. the ‘pseudovector’ and the ‘pseudoscalar’ theory respectively.

1947 Rev. Mod. Physics 19 2/2 We are left with mesons of spin 0..or possibly spin 1 (vector or pseudovector fields).

1964 Cambr. Rev. 24 Oct. 51/1 The assumed conservation of the pseudovector current.

1994 D. E. Rose Symbolic & Connectionist Approach Legal Information Retrieval viii. 191 This more concise representation allowed more of the network to reside in memory, more than offsetting the extra cost of performing the pseudo-vector operations.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	pseudovector
释义	pseudovectorn.adj. (in sense A.)Brit. /ˈs(j)uːdə(ʊ)ˌvɛktə/, U.S. /ˈsudoʊˌvɛktər/ (in sense B.)Brit. /ˌs(j)uːdə(ʊ)ˈvɛktə/, U.S. /ˌsudoʊˈvɛktər/ Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, vector n. Etymology: < pseudo- comb. form + vector n. Mathematics and Physics. A. n. A vector whose sign is unchanged when the signs of all its components are changed.An example is the vector product of two vectors: changing the sign of both vectors leaves their vector product unchanged. ΘΚΠ the world > matter > physics > quantum theory > quantum mechanics > quantum field theory > [noun] > pseudovector pseudovector1922 the world > relative properties > number > mathematical number or quantity > tensor > [noun] > vector > specific type of R1675 radius vector1740 spin vector1882 axial vector1903 polar vector1903 free vector1904 position vector1906 four-vector1914 pseudovector1922 row vector1928 1922 Proc. Royal Soc. A. 102 282 There exists a true Poynting vector... We shall examine whether there is not in addition a Poynting pseudo-vector. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 413/1 In general, vectors associated with rotations belong to the category of pseudovectors. 1992 Ann. Rev. Fluid Mech. 24 305 The pseudo-vector D^(a) is nonzero only if the turbulence lacks reflectional symmetry. B. adj. Relating to or of the nature of a pseudovector; mathematically described or represented by a pseudovector. ΘΚΠ the world > relative properties > number > mathematical number or quantity > tensor > [adjective] > of nature of a vector > of specific vector(s) orthogonal1913 pseudovector1939 1939 Proc. Royal Soc. A. 173 106 The above schemes may be equally well taken to describe the dual theories, i.e. the ‘pseudovector’ and the ‘pseudoscalar’ theory respectively. 1947 Rev. Mod. Physics 19 2/2 We are left with mesons of spin 0..or possibly spin 1 (vector or pseudovector fields). 1964 Cambr. Rev. 24 Oct. 51/1 The assumed conservation of the pseudovector current. 1994 D. E. Rose Symbolic & Connectionist Approach Legal Information Retrieval viii. 191 This more concise representation allowed more of the network to reside in memory, more than offsetting the extra cost of performing the pseudo-vector operations. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.adj.1922
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