hex-

prefix

Used for the digit six to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.

“un- (“1”) + bi- (“2”) + hex- (“6”) + -ium (element suffix) → unbihexium (“element 126”)”

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Meanings

prefix
  1. alternativeAlternative form of hexa-, usually used before a vowel.
  2. chemistryUsed for the digit six to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.

    un- (“1”) + bi- (“2”) + hex- (“6”) + -ium (element suffix) → unbihexium (“element 126”)

Synonyms & antonyms

Also see
sex-
Cite this entry
APA

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

MLA

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

Chicago

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

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