separatory

English

Etymology

From separate +‎ -ory.

Adjective

separatory (not comparable)

1. Used to separate.

   A separatory funnel is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture.

Noun

separatory (plural separatories)

1. (obsolete, chemistry) An apparatus used in separating, such as a separating funnel.
2. (obsolete, surgery) A surgical instrument for separating the pericranium from the cranium.