411 REFERENCE · Wiktionary
Class M
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
+ planet
Alternative forms
en class M
Etymology
Originally from the TV series Star Trek.
Adjective
- Class M
en scifi Of a planet: having characteristics similar to that of Earth.
References
class M planet 1212 n
en terms derived from Star Trek
en Star Trek