| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Betelgeuse (bēt'l-j z') Pronunciation Key
A red supergiant star in the constellation Orion. It is a variable star with a brightest apparent magnitude of 0.5. Scientific name: Alpha Orionis. See Note at Rigel. |