biconditional

B3I1C3O1N1D2I1T1I1O1N1A1L1

adjective

Having two conditions

OriginEnglish conditional ← Latin bi- ← Proto-Italic *dwi- →
Scrabble 18
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Meanings

adjectivebiconditional (not comparable)
  1. not comparableHaving two conditions
nounbiconditional (plural biconditionals)

plural biconditionals

  1. human sciencesAn "if and only if" conditional wherein the truth of each term depends on the truth of the other

    Although (MR) is discussed here as simply (CP ), in actuality (MR) is a biconditional of which one part is (CP ).

    2008 January 3, Anand Vaidya, “Modal Rationalism and Modal Monism”, in Erkenntnis, volume 68, number 2, →DOI

Origin

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Italic*dwi-
  4. Latinbi-
  5. Englishbi-
  6. Englishconditional
  7. Englishbiconditional

From bi- + conditional.

Full word history & related roots →

Translations

Japanese 双条件文, 同値
  • 双条件文 (sō-jōkenbunn)in logic and mathematics: if and only if
  • 同値 (dōchi)in logic and mathematics: if and only if
Cite this entry
APA

biconditional. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/biconditional

MLA

“biconditional.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/biconditional. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “biconditional,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/biconditional.

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