Archimedes' screw
or Archimedean screw
noun
a device consisting essentially of a spiral passage within an inclined cylinder for raising water to a height when rotated.
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Commas mark divisions in sentences. Periods end declarative sentences. Apostrophes show possession. Easy, right? Well, punctuation can get pretty tricky—fast. Think you got what it takes to be a punctuation expert? Take our quiz to prove it!
Question 1 of 10
Which of the options below is the best punctuation for the sentence? It__s your turn to pick the movie __ but your sister gets to pick the board game we _ re going to play.
Its your turn to pick the movie but your sister gets to pick the board game we’re going to play.
It’s your turn to pick the movie but your sister gets to pick the board game were going to play.
It’s your turn to pick the movie, but your sister gets to pick the board game we’re going to play.
TAKE THE QUIZ TO FIND OUTAlso called water snail.
Origin of Archimedes' screw
First recorded in 1860–65
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for archimedes' screw
Archimedes' screw
Archimedean screw
/ (ˌɑːkɪˈmiːdɪən, -mɪˈdiːən) /
noun
an ancient type of water-lifting device making use of a spiral passage in an inclined cylinder. The water is raised when the spiral is rotated
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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