sea legs

Noun

 * 1)  The ability, when walking aboard a ship, to anticipate the motion of the deck so as to walk steadily without losing balance.
 * 2)  The ability to travel by ship without becoming seasick.
 * 3)  The ability to partially or fully inhabit a marine environment.
 * 1)  The ability to partially or fully inhabit a marine environment.

Translations

 * Finnish: merijalat
 * French: pied marin
 * Norwegian:
 * Bokmål: sjøbein
 * Nynorsk: sjøbein