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Robertson screw

/ (ˈrɒbətsən) /
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noun
trademark a screw having a square hole in the head into which a screwdriver with a square point (Robertson screwdriver (trademark)) fits
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The rainy weather could not ________ my elated spirits on my graduation day.
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Word Origin for Robertson screw

C20: after its inventor P. L. Robertson (1896–1951), a Canadian industrialist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use Robertson screw in a sentence

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