activationless

A1C3T1I1V4A1T1I1O1N1L1E1S1S1

adjective

Having an activation energy near 0

OriginProto-Germanic *lausaz ← Proto-Indo-European *lewHs- ← English activation →
Scrabble 19
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectiveactivationless (not comparable)
  1. not comparablephysicalchemistryHaving an activation energy near 0

    In this case, ionization is activationless, i.e. its rate constant is extemely large and independent of potential.

    1986, Lev Isaevich Krishtalik, (Please provide the book title or journal name), →ISBN, page 73

Origin

  1. Proto-Indo-European*h₂eǵ-
  2. Proto-Indo-European*h₂éǵeti
  3. Proto-Italic*agō
  4. Latinagō
  5. Ancient Greekἐνεργητικός (energētikós)
  6. Latināctīvu
  7. Old Frenchactif
  8. Middle Englishactyf
  9. Englishactive
  10. Englishactivate
  11. Englishactivation
  12. Proto-Indo-European*lewh₁-
  13. Proto-Indo-European*lewHs-
  14. Proto-Germanic*leusaną
  15. Proto-Germanic*lausaz
  16. Englishactivationless

From activation + -less.

Full word history & related roots →
Cite this entry
APA

activationless. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/activationless

MLA

“activationless.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/activationless. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “activationless,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/activationless.

Source: activationless on Wiktionary, CC BY-SA 4.0.