ectohormone

E1C3T1O1H4O1R1M3O1N1E1

noun

Any hormone that is secreted into an individual's environment and affects the behaviour or activity of another individual (of the same or different species) in the manner of a pheromone.

OriginEnglish hormone ← Ancient Greek ὁρμῶν (hormôn) →
Scrabble 18
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Meanings

nounectohormone (plural ectohormones)

plural ectohormones

  1. biologyAny hormone that is secreted into an individual's environment and affects the behaviour or activity of another individual (of the same or different species) in the manner of a pheromone.

Origin

  1. Ancient Greekἐκ (ek)
  2. Ancient Greekἐντός (entós)
  3. Ancient Greekἐκτός (ektós)
  4. Englishecto-
  5. Ancient Greekὁρμῶν (hormôn)
  6. Englishhormone
  7. Englishectohormone

From ecto- + hormone.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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