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acrospire

[ak-ruh-spahyuh r] /ˈæk rəˌspaɪər/
noun, Botany
1.
the first sprout appearing in the germination of grain; the developed plumule of the seed.
Origin
1610-1620
1610-20; acro- + spire1; replacing akerspire, equivalent to aker (Old English æchir ear of grain) + spire
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for acrospire

acrospire

/ˈækrəˌspaɪə/
noun
1.
the first shoot developing from the plumule of a germinating grain seed
Word Origin
C17: from obsolete akerspire, from akerear² + spire sprout, spire1; the modern form is influenced by acro-
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
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