Meanings
nounpierhead line (plural pierhead lines)
plural pierhead lines
- USA line in a navigable waterway established by the Army Corps of Engineers, beyond which a pier cannot project.
Cite this entry
APA
pierhead line. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pierhead%20line
MLA
“pierhead line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pierhead%20line. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “pierhead line,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pierhead%20line.
Source: pierhead line on Wiktionary, CC BY-SA 4.0.