headgroup

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noun

A bulky part of a molecule, often containing one or more functional groups, attached to a relatively long aliphatic tail or backbone

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Meanings

nounheadgroup (plural headgroups)

plural headgroups · alternative head group

  1. chemistryA bulky part of a molecule, often containing one or more functional groups, attached to a relatively long aliphatic tail or backbone
  2. mathematicsThe group of instances at the head (high end) of a distribution curve

Origin

From head + group.

Full word history & related roots →

Rhymes & wordplay

Anagrams

durophage
Cite this entry
APA

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

MLA

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

Chicago

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

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