DICT.TW Dictionary Taiwan
3.144.18.59
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Per·i·hel·ion Per·i·he·li·um n.; pl. Perihelia   Astron. That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.
 ◄ ►