Definition

Celestia

1.pertaining to the sky or visible heaven, or to the universe beyond the earth’s atmosphere, as in celestial body .

2.pertaining to the spiritual or invisible heaven; heavenly; divine: celestial bliss.

3.of or pertaining to celestial navigation: a celestial fix.

4.( initial capital letter ) of or pertaining to the former Chinese Empire or the Chinese people.

5.an inhabitant of heaven.

6.( initial capital letter ) a citizen of the Celestial Empire.

orbit

1.the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

2.the usual course of one's life or range of one's activities.

3.the sphere of power or influence, as of a nation or person: a small nation in the Russian orbit.

4.Physics. (in Bohr theory) the path traced by an electron revolving around the nucleus of an atom.

5.an orb or sphere.

axis

1.the line about which a rotating body, such as the earth, turns.

2.Mathematics .

a.a central line that bisects a two-dimensional body or figure.

b.a line about which a three-dimensional body or figure is symmetrical.

3.Anatomy .

a.a central or principal structure, about which something turns or is arranged: the skeletal axis.

b.the second cervical vertebra.

4.Botany . the longitudinal support on which organs or parts are arranged; the stem and root; thecentral line of any body.

5.Analytic Geometry . any line used as a fixed reference in conjunction with one or more otherreferences for determining the position of a point or of a series of points forming a curve or asurface. Compare x-axis, y-axis.

revolution

1.an overthrow or repudiation and the thorough replacement of an established government or politicalsystem by the people governed.

2.Sociology . a radical and pervasive change in society and the social structure, especially one madesuddenly and often accompanied by violence. Compare social evolution.

3.a sudden, complete or marked change in something: the present revolution in church architecture.

4.a procedure or course, as if in a circuit, back to a starting point.

5.a single turn of this kind.

Nebulae

1.Astronomy .

a.Also called diffuse nebula. a cloud of interstellar gas and dust. Compare dark nebula, emission nebula, reflection nebula.

b.(formerly) any celestial object that appears nebulous, hazy, or fuzzy, and extended in atelescope view.

2.Pathology

a.a faint opacity in the cornea.

b.cloudiness in the urine.

3.any liquid medication prepared for use as a spray.