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Needlelike, as the leaves of pine; acerate.

[New Latin acerōsus, incorrect use of Latin acerōsus, full of chaff (as if from acus, needle, or ācer, sharp), from acus, acer-, chaff; see ak- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈæsəˌrəʊs; -ˌrəʊz) (ˈæsəˌrəs) or


(Botany) shaped like a needle, as pine leaves
[C18: from Latin acerōsus full of chaff (erroneously used by Linnaeus as if derived from ācer sharp)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈæs əˌroʊs)

needle-shaped, as the leaves of the pine.
[1775–85; misattribution of acer- to Latin acus needle, whose s. is acu- and not acer- (compare acute)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.acerose - narrow and long and pointedacerose - narrow and long and pointed; as pine leaves
unsubdivided, simple - (botany) of leaf shapes; of leaves having no divisions or subdivisions
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
From Figure 4(a), we see there are innumerable various plant leaves, but these leaves can be clustered into several similar classes by leaf shape description or similarity measure, such as Acerose, Linear, Gladiate, Ensiform, Oblanceolate, Ovate, Oval, Obovate, and Elliptic.
CAPERER AXONEME BELABOR ANIMATO LITOTES ACEROSE SPIVS HUMIC AJIVA GADID SHEDS The largest heterogram grids (no letter of the alphabet appearing more than once) are of size 4x4.
What does the adjective 'acerose' mean in discussing nature?