planet
Listen:Concise Oxford English Dictionary © 2008 Oxford University Press:
planet/ˈplanɪt/
▶noun a celestial body moving in an elliptical orbit round a star.
■ (the planet) the earth.
■ chiefly Astrology & historical a celestial body distinguished from the fixed stars by having an apparent motion of its own (including the moon and sun).
– phrases
what planet are you on? Brit. informal used to indicate that someone is out of touch with reality.
what planet are you on? Brit. informal used to indicate that someone is out of touch with reality.
– derivatives
planetary adjective,
planetologist noun,
planetology noun.
planetary adjective,
planetologist noun,
planetology noun.
– origin ME: from OFr. planete, from late L. planeta, planetes, from Gk planētēs ‘wanderer, planet’, from planan ‘wander’.
'planet' also found in these Oxford entries:
anomaly
- areology
- ascendant
- aspect
- asynchronous
- atmosphere
- brown dwarf
- core
- crust
- day
- dayside
- dwarf planet
- earth
- ecosphere
- elongation
- escape velocity
- evening star
- exoplanet
- exosphere
- fixed star
- Friday
- geocentric latitude
- greenhouse effect
- hard landing
- heavenly body
- heliacal
- Hesperus
- ice cap
- inferior planet
- ingress
- jovial
- Jovian
- Jupiter
- lander
- Lucifer
- lunar distance
- major planet
- Mars
- Martian
- mercurial
- Mercury
- minor planet
- moon
- morning star
- Neptune
- Neptunian
- neptunium
- nightside
- node
- opposition
