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arch head
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noun Machinery.
a vertical, arc-shaped member fixed to the end of a walking beam, for supporting a chain from which a pump rod or the like is suspended in such a way as to let it rise and fall vertically.
QUIZ
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Question 1 of 9
Which of the following nouns has an irregular plural form?
Words nearby arch head
archesporium, archetto, archetypal, archetype, archfiend, arch head, archi-, Archibald, Archibald prize, archibenthos, archiblast
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022