galactic halo
noun
A roughly spheroidal part of many spiral galaxies that surrounds the disc and the bulge and is more diffuse, containing stars that are older; specifically that of the galaxy to which the solar system belongs, which contains stars and globular clusters.
Origin
1950s; earliest use found in Astrophysical Journal.
- dermatitis
- dermato-
- dermatoglyphic
- dermatoglyphics
- dermatologic
- dermatological
- dermatologically
- dermatologist
- dermatology
- dermatome
- dermatomycosis
- dermatomyositis
- dermatophyte
- dermatophytic
- dermatophytosis
- dermatosis
- dermestid
- dermic
- dermis
- dermographic
- dermoid
- dermoid cyst
- Dermoptera
- dermopteran
- dernier cri