spec. Astronomy circle of altitude n. a small circle parallel to the horizon, having its pole in the zenith; an almacantar. circle of curvature n.…
| 单词 | θ39 |
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > [noun] (73) circle of altitudec1000 spec. Astronomy circle of altitude n. a small circle parallel to the horizon, having its pole in the zenith; an almacantar. circle of curvature n.… linea1387 A circle of the terrestrial or celestial sphere; e.g. †ecliptic line, equinoctial line, †tropic line. Now rare. Subcategories:— great circle (58) — lesser circle (10) — fact of not being concentric with sphere (1) — astronomical triangle (2) |
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