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单词 ascensional
释义

ascensionaladj.

/əˈsɛnʃənəl/
Etymology: < ascension n. + -al suffix1.
1. Of or belonging to ascension. ascensional difference in Astronomy: the difference between the right and oblique ascension of the sun or a star.
ΘΚΠ
the world > the universe > heavenly body > movement of heavenly bodies > [adjective] > rising
rising1557
ascensional1594
ortive1635
1594 T. Blundeville Exercises iii. i. xxxiv. f. 165v The ascentionall difference being knowne, all the oblique ascentions and descentions of the starres are easily knowne by the Tables of directions.
1796 C. Hutton Math. & Philos. Dict. (new ed.) I. 148 The sun's Ascensional Difference, converted into time, shews how much he rises before or after 6 o'clock.
1834 Nat. Philos. (Libr. Useful Knowl.) III. Hist. Astron. 12/1 The ascensional difference (that is, the arc measuring the increase of the day at any place).
2.
a. Of or belonging to ascent; tending upwards.
ΘΚΠ
the world > movement > motion in a certain direction > upward movement > [adjective] > moving upwards
uprisinga1300
risingc1450
ascensial?1504
mountant1525
mounting1550
orienta1560
ascendant1591
surgenta1592
stying1593
ambitiousc1595
arising1605
ascensive1646
subliming1666
ascending1667
ascensional1753
upmounting1794
rearing1816
upcoming1835
aspirant1845
insurrectionary1864
upgoing1896
1753 Chambers's Cycl. Suppl. App. at Force Huygens [held] that bodies constantly preserve their ascensional force, that is, the product of their mass by the height to which their center of gravity can ascend.
1860 J. Tyndall Glaciers of Alps i. §20. 137 The current, however, continued ascensional.
1880 Colliery Guard. 5 Nov. The diffusion of gases in mines, and its relation to ascensional ventilation.
b. ascensional screw n. a helical propeller that gives a lifting motion to an airship or flying-machine.
ΘΚΠ
society > travel > air or space travel > a means of conveyance through the air > rotary wing aircraft > [noun] > parts of rotary wing aircraft > rotor
ascensional screw1901
lifting screw1902
rotor1915
windmill1931
tilting rotor1940
tilt rotor1961
1901 Westm. Gaz. 15 Aug. 6/1 With my ascensional screws..I am indifferent to wind, because I can rise and descend in search of a suitable belt of air.
1903 Daily Chron. 27 Sept. 7/4 A new flying machine... It is the invention of Mr. H. A. Chubb, and it rises by means of ascensional screws or helices.
This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2021).
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adj.1594
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更新时间:2025/1/11 3:36:17