different between terrestrial vs contraterrene

English

Etymology

Borrowed from Latin terrestris, from terra (“land, earth, ground”), with the suffix -al.

Pronunciation

• IPA^(key): /t????st?i.?l/

Noun

terrestrial (plural terrestrials)

1. (botany) A ground-dwelling plant.
2. Alternative letter-case form of Terrestrial

Adjective

terrestrial (not comparable)

1. Of, relating to, or inhabiting the land of the Earth or its inhabitants, earthly.
2. Of, relating to, or composed of land.
   • 1997, New Scientist, issue 2096, Review: Cinderella's house

     Microorganisms are the Cinderellas of terrestrial ecology — the majority of the Earth's biomass, yet barely catalogued.

3. Living or growing in or on land (as opposed to other habitat); not aquatic, etc.

4. (astronomy) Of a planet, being composed primarily of silicate rocks or metals; see also terrestrial planet.
5. Concerned with the world or worldly matters.
6. (Mormonism) Of or pertaining to the second highest degree of glory.
7. (broadcasting) Broadcast using radio waves as opposed to satellite or cable.

Synonyms

• earthly
• planetary
• tellurian, telluric, Terran, terrene
• (of, relating to, or composed of land): land, landly
• (astronomy: Earth-like): telluric, rocky
• (concerned with the world): earthly, mundane, sublunary, worldly

Antonyms

• (of, made of, related to, or living or growing on land): aerial, aquatic, arboreal, epiphytic
• (concerned with the world): celestial, spiritual

Hyponyms

Derived terms

Related terms

Translations

References

• terrestrial at OneLook Dictionary Search

English

Alternative forms

• contra-terrene
• contra terrene

Etymology

• contra- +? terrene
• Physics meaning from physicist Dirac's notion that an ordinary electron “rests” on the Dirac sea (terrene) whereas a positron exists as a “hole” in that sea (contra-terrene).

Adjective

contraterrene (comparative more contraterrene, superlative most contraterrene)

1. Not terrestrial.
2. (obsolete, physics) Of or pertaining to antimatter.

References

• OED 2nd edition 1989