semi-nocturnaladj.

Etymology: semi- prefix 2a(b).Previous versions of the OED give the stress as: ˌsemi-nocˈturnal.

Astronomy.

Pertaining to, or accomplished in, half a night.

ΘΚΠ

the world > the universe > heavenly body > movement of heavenly bodies > [adjective] > movement in orbit > diurnal circle

semi-diurnal1581

semi-nocturnal1594

1594 T. Blundeville Exercises ii. i. xviii. f. 152 It deuideth the artificial day and artificiall night each of them into two parts, that is to say, into two semi-diurnall & into two seminocturnall partes.

1660 H. More Explan. Grand Myst. Godliness vii. xv. 342 The seminocturnal archs of the Ascension of the Ecliptick.

1679 J. Moxon Math. made Easie 87 By the help thereof [the Meridian], is found..the..Seminocturnal Arch of any Star.

1694 J. Atkinson Wakely's Mariners-compass Rectified (new ed.) 93 Astronomical Tables Of Semidiurnal and Seminocturnal Arches.

1819 J. Wilson Compl. Dict. Astrol. 49 Subtract the seminocturnal arc of the star from its oblique ascension.

This entry has not yet been fully updated (first published 1911; most recently modified version published online March 2021).

单词	semi-nocturnal
释义	semi-nocturnaladj. Etymology: semi- prefix 2a(b).Previous versions of the OED give the stress as: ˌsemi-nocˈturnal. Astronomy. Pertaining to, or accomplished in, half a night. ΘΚΠ the world > the universe > heavenly body > movement of heavenly bodies > [adjective] > movement in orbit > diurnal circle semi-diurnal1581 semi-nocturnal1594 1594 T. Blundeville Exercises ii. i. xviii. f. 152 It deuideth the artificial day and artificiall night each of them into two parts, that is to say, into two semi-diurnall & into two seminocturnall partes. 1660 H. More Explan. Grand Myst. Godliness vii. xv. 342 The seminocturnal archs of the Ascension of the Ecliptick. 1679 J. Moxon Math. made Easie 87 By the help thereof [the Meridian], is found..the..Seminocturnal Arch of any Star. 1694 J. Atkinson Wakely's Mariners-compass Rectified (new ed.) 93 Astronomical Tables Of Semidiurnal and Seminocturnal Arches. 1819 J. Wilson Compl. Dict. Astrol. 49 Subtract the seminocturnal arc of the star from its oblique ascension. This entry has not yet been fully updated (first published 1911; most recently modified version published online March 2021). < adj.1594
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