limit-switch

limit switch

noun
a switch that automatically cuts off current to an electric motor when an object moved by it, as an elevator, has passed a given point.

Origin:
1925–30

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Limit-switch is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
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