separator

noun

sep·​a·​ra·​tor ˈse-pə-ˌrā-tər How to pronounce separator (audio)
ˈse-ˌprā-tər
: one that separates
especially : a device for separating liquids of different specific gravities (such as cream from milk) or liquids from solids

Examples of separator in a Sentence

the toddler insisted on a dinner plate with separators so that different foods would never touch one another
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The solid-state battery developer successfully integrated its advanced Cobra separator process into its baseline cell production, a crucial step toward commercial viability. Trefis Team, Forbes.com, 25 June 2025 QuantumScape — Shares soared more than 35% after the startup, which develops solid-state lithium-metal battery technology, announced the integration of its advanced Cobra separator process into baseline cell production. Pia Singh, CNBC, 25 June 2025 The big one is defense — BABIP allowed (the inverse of defensive efficiency) was a more significant separator of champs from non-champs than other measures of fielding, and therefore comes with a higher bar to clear here. Neil Paine, New York Times, 17 June 2025 Most run-of-the-mill thong-style sandals come with flimsy, thin soles, and rock-hard plastic toe separators, leaving problem-prone feet sore, raw, and in way worse shape than before. Amelia McBride, Travel + Leisure, 1 June 2025 See All Example Sentences for separator

Word History

First Known Use

1607, in the meaning defined above

Time Traveler
The first known use of separator was in 1607

Browse Nearby Words

Cite this Entry

“Separator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/separator. Accessed 30 Jun. 2025.

Kids Definition

separator

noun
sep·​a·​ra·​tor ˈsep-ə-ˌrāt-ər How to pronounce separator (audio)
: one that separates
especially : a device for separating liquids (as cream from milk) of different densities or liquids from solids

Medical Definition

separator

noun
sep·​a·​ra·​tor ˈsep-(ə-)ˌrāt-ər How to pronounce separator (audio)
: one that separates: as
a
: a device for separating liquids of different specific gravities (as cream from milk) or liquids from solids
b
: a dental appliance for separating adjoining teeth to give access to their surfaces

More from Merriam-Webster on separator

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