Word.ws English Dictionary

RG

RG is the initialism of radio galaxy.

RG is the initialism of radius of gyration.

RG is the initialism of relational grammar.

RG is the initialism of rhythmic gymnastics.

Meaning of radio galaxy

Noun

radio galaxy (plural radio galaxies)

  1. Type of galaxy that is very luminous at radio wavelengths.
    Synonyms:
    RG

Meaning of radius of gyration

Noun

radius of gyration (plural radii of gyration)

  1. Given a body B, the distance from a given axis of rotation at which a point mass of the same mass as B would have the same moment of inertia about said axis.
    • Since the radius of gyration depends on the manner in which the mass is arranged round the axis, it follows that for different axes in the same body there will be different radii of gyration.1852, [1831], Henry Kater, Dionysius Lardner, A Treatise on Mechanics, page 137
    Synonyms:
    gyradius

Forms of RG

pluralRGs

Words formed from RG

Phrases with RG

Questions about RG

What is RG the initialism of?
RG is the initialism of radio galaxy.

Words near RG in the dictionary

  1. RFT
  2. RFTs
  3. RFV
  4. RFX
  5. RFXs
  6. RG
  7. Rg Veda
  8. RGA
  9. RGB
  10. RGBA
  11. RGBI

Source and license

Adapted from Wiktionary: RG (page history and authors); radio galaxy (page history and authors); radius of gyration (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “RG.” Word.ws, https://word.ws/rg. Based on Wiktionary, CC BY-SA 4.0.