mouthline

M3O1U1T1H4L1I1N1E1

noun

The line formed by a creature's closed mouth.

Scrabble 14
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Meanings

nounmouthline (plural mouthlines)

plural mouthlines

  1. The line formed by a creature's closed mouth.

    Traditionally, duckbill dinosaurs have been portrayed as cheekless, with the mouthline running from chin to ear[…]

    1986, Robert T. Bakker, The dinosaur heresies

Origin

From mouth + line.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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