EQUATORIALLY

Etymology

Adverb

equatorially (comparative more equatorially, superlative most equatorially)

In an equatorial direction

Source: Wiktionary


E`qua*to"ri*al*ly, adv.

Definition: So as to have motion or direction parallel to the equator.

EQUATORIAL

E`qua*to"ri*al, a. Etym: [Cf. F. Ă©quatorial.]

Definition: Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument.

E`qua*to"ri*al, n. (Astron.)

Definition: An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockwork, so as to keep the object constantly in the field of the telescope. Called also an equatorial telescope.

Note: The term equatorial, or equatorial instrument, is sometimes applied to any astronomical instrument which has its principal axis of rotation parallel to the axis of the earth.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

10 November 2024

INNOCENT

(adjective) free from evil or guilt; “an innocent child”; “the principle that one is innocent until proved guilty”


coffee icon

Coffee Trivia

The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.

coffee icon