Planetarian



[plan-i-tair-ee-uh n] /ˌplæn ɪˈtɛər i ən/

noun
1.
a staff member at a planetarium.
2.
an inhabitant of a planet.
adjective
3.
of or relating to a planetarian.

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  • Planetarium

    [plan-i-tair-ee-uh m] /ˌplæn ɪˈtɛər i əm/ noun, plural planetariums, planetaria [plan-i-tair-ee-uh] /ˌplæn ɪˈtɛər i ə/ (Show IPA) 1. an apparatus or model representing the planetary system. 2. a device that produces a representation of the heavens by the use of a number of moving projectors. 3. the building or room in which such a device […]

  • Planetary

    [plan-i-ter-ee] /ˈplæn ɪˌtɛr i/ adjective 1. of, relating to, or resembling a or the . 2. wandering; erratic. 3. terrestrial; global. 4. Machinery. noting or pertaining to an epicyclic gear train in which a sun gear is linked to one or more gears also engaging with an encircling ring gear. noun 5. Machinery. a planetary […]



  • Planetary-nebula

    noun, Astronomy. 1. an expanding shell of thin ionized gas that is ejected from and surrounds a hot, dying star of about the same mass as the sun; the gas absorbs ultraviolet radiation from the central star and reemits it as visible light by the process of fluorescence. noun 1. an expanding shell of gas […]

  • Planetary-precession

    noun, Astronomy. 1. the small component of the precession of the equinoxes contributed by the motion of the ecliptic, the change in orientation of the plane of the earth’s orbit being produced by the gravitational attraction of the planets.



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