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acrospire

American  
[ak-ruh-spahyuhr] / ˈæk rəˌspaɪər /

noun

Botany.

  1. the first sprout appearing in the germination of grain; the developed plumule of the seed.

acrospire British  
/ ˈækrəˌspaɪə /

noun

  1. the first shoot developing from the plumule of a germinating grain seed

"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

Etymology

Origin of acrospire

1610–20; acro- + spire 1; replacing akerspire, equivalent to aker ( Old English æchir ear of grain) + spire

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If the acrospire be suffered to proceed, the mealy substance melts into a liquid sweet, which soon passes into the blade, and leaves the husk entirely exhausted.

From The American Practical Brewer and Tanner by Coppinger, Joseph

By this is meant the farthest advance of the acrospire, when it is just bursting from its confinement, before it has effected its enlargement.

From The American Practical Brewer and Tanner by Coppinger, Joseph

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.