Meanings
nounfree surface (plural free surfaces)
plural free surfaces
- natural sciencesThe surface of a fluid that is subject to zero parallel shear stress (e.g. the interface between two homogeneous fluids).
Cite this entry
APA
free surface. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/free%20surface
MLA
“free surface.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/free%20surface. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “free surface,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/free%20surface.
Source: free surface on Wiktionary, CC BY-SA 4.0.