Meanings
Synonyms & antonyms
nounthe bony arch formed by the collarbones and shoulder blades in humans
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Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
pectoral arch. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pectoral%20arch
MLA
“pectoral arch.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pectoral%20arch. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “pectoral arch,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pectoral%20arch.
Source: pectoral arch on Wiktionary, CC BY-SA 4.0.