An acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.
Keel haul
-
A punishment for sailors, in which the sailor is tied up and hauled under the ship along the entire length of the [keel] resulting in many scrapes, cuts and slivers.
Keel haul meaning & definition 1 of Keel haul.
Similar Words