pent-

prefix

Used for the digit five 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”) + pent- (“5”) + -ium (element suffix) → unbipentium (“element 125”)”

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Meanings

prefix
  1. alternativeAlternative form of penta- used before a vowel.
  2. chemistryUsed for the digit five 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”) + pent- (“5”) + -ium (element suffix) → unbipentium (“element 125”)

Cite this entry
APA

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

MLA

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

Chicago

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

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