motus peculiarisn.

Brit.

/ˈməʊtəs pᵻˌkjuːlɪˈɑːrɪs/, U.S.

/ˈˌmoʊdəs pəˌkjuliˈɛrɪs/

Inflections: Plural motus peculiares.

Origin: A borrowing from Latin. Etymon: Latin motus peculiaris.

Etymology: < post-classical Latin motus peculiaris (1628 or earlier; contrasted with motus proprius : see proper motion n.) < classical Latin mōtus motion, movement (see mote n.³) + pecūliāris peculiar adj.

Astronomy. Now rare.

Peculiar motion (of a star) (see peculiar adj. 2c). Cf. also proper motion n.

ΘΚΠ

the world > the universe > star > stellar motion > [noun]

proper motion1561

star drift1829

star stream1844

motus peculiaris1890

star streaming1905

drift1906

1890 A. M. Clerke Syst. Stars xxii. 340 The motus peculiaris itself is only a projection upon the sphere of a line of travel which may make any angle with the line of sight.

1891 Science 18 253/1 The method..is to treat the inherent motions of the stars (their so-called motus peculiares) as pursued indifferently in all directions.

1914 A. S. Eddington Stellar Movements & Struct. Universe vi. 127 Suppose that there is a drift of stars, i.e. a system, in which the motûs peculiares are haphazard, but which is moving as a whole relatively to the Sun.

1968 W. M. Smart Stellar Kinematics i. 23 OB is the vector of the star's motion with respect to the standard of rest and is variously described as the star's motus peculiaris (or ‘peculiar motion’) or the space-velocity.

This is a new entry (OED Third Edition, March 2003; most recently modified version published online March 2022).

单词	motus peculiaris
释义	motus peculiarisn. Brit. /ˈməʊtəs pᵻˌkjuːlɪˈɑːrɪs/, U.S. /ˈˌmoʊdəs pəˌkjuliˈɛrɪs/ Inflections: Plural motus peculiares. Origin: A borrowing from Latin. Etymon: Latin motus peculiaris. Etymology: < post-classical Latin motus peculiaris (1628 or earlier; contrasted with motus proprius : see proper motion n.) < classical Latin mōtus motion, movement (see mote n.³) + pecūliāris peculiar adj. Astronomy. Now rare. Peculiar motion (of a star) (see peculiar adj. 2c). Cf. also proper motion n. ΘΚΠ the world > the universe > star > stellar motion > [noun] proper motion1561 star drift1829 star stream1844 motus peculiaris1890 star streaming1905 drift1906 1890 A. M. Clerke Syst. Stars xxii. 340 The motus peculiaris itself is only a projection upon the sphere of a line of travel which may make any angle with the line of sight. 1891 Science 18 253/1 The method..is to treat the inherent motions of the stars (their so-called motus peculiares) as pursued indifferently in all directions. 1914 A. S. Eddington Stellar Movements & Struct. Universe vi. 127 Suppose that there is a drift of stars, i.e. a system, in which the motûs peculiares are haphazard, but which is moving as a whole relatively to the Sun. 1968 W. M. Smart Stellar Kinematics i. 23 OB is the vector of the star's motion with respect to the standard of rest and is variously described as the star's motus peculiaris (or ‘peculiar motion’) or the space-velocity. This is a new entry (OED Third Edition, March 2003; most recently modified version published online March 2022). < n.1890
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