waterline

== English == === Etymology === From water +‎ line. === Pronunciation === IPA(key): /ˈwɔːtə(ɹ)laɪn/ === Noun === waterline (plural waterlines) (nautical) A line formed by the surface of the water on the hull of a ship when she is afloat; any of a series of short lines marked on the hull to show where the waterline would be under different loadings (aviation) A horizontal line indicating the shape of an airfoil. A line showing where the water has been, usually a line separating dry land and wet areas; a watermark or tidemark. The line formed by where the water level of a body of water currently is: where the water's surface currently meets the bank; it may move higher or lower depending on the weather, tide, or season. Near-synonym: water's edge (cosmetics) The inner rim of the eyelid, just behind the lash line; primarily used in reference to the application of eyeliner. ==== Coordinate terms ==== (aviation): section, buttock line (nautical): Plimsoll line, load line ==== Derived terms ==== ==== Translations ==== === See also === Plimsoll line