sep ‧ a ‧ ra ‧ tor /ˈsepəreɪtə $ -ər/ BrE AmE noun [countable]
[ Word Family: noun : ↑ separation , ↑ separates , ↑ separatist , ↑ separatism , ↑ separator , inseperability; adjective : ↑ separable ≠ ↑ inseparable , ↑ separate , ↑ separated ; adverb : ↑ inseparably , ↑ separately ; verb : ↑ separate ]
a machine for separating liquids from solids, or cream from milk