Word.ws English Dictionary

xenna-

/ˈzɛnə/

xenna- prefix: synonym of ronna- (used before an official prefix existed). Symbol: X.

Prefix

xenna-

  1. (informal) Synonym of ronna- (used before an official prefix existed). Symbol: X
    • The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers.1994, IPC Magazines, New Scientist, volume 144, page 81
    • If we try to calculate the mass of earth it comes to 6 xennagrams which is nothing but 6x10²⁴ kilograms or 6x10²⁷ gms.1997, Council of Scientific & Industrial Research, Science Reporter, volume 34, page 23
    Synonyms:
    ronna-

Synonyms of xenna-

Antonyms

Origin of xenna-

From Ancient Greek ἐννέα (ennéa, “nine”), for the ninth order of 10³, and the letter x, as the third term in a series running backwards through the alphabet (after zetta- and yotta-). The final a conforms to the final vowel of the SI series from mega- upwards.

Questions about xenna-

What does xenna- mean?
Xenna- means synonym of ronna- (used before an official prefix existed). Symbol: X.
What part of speech is xenna-?
Xenna- is a prefix.
How do you pronounce xenna-?
Xenna- is pronounced /ˈzɛnə/.

Words near xenna- in the dictionary

  1. Xenite
  2. Xenites
  3. xenium
  4. Xenix
  5. xenization
  6. xenna-
  7. xennial
  8. xennials
  9. xenno-
  10. xeno-
  11. xeno-free

Source and license

Adapted from Wiktionary: xenna- (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.

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