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acerose1

[as-uh-rohs] /ˈæs əˌroʊs/
adjective, Botany
1.
needle-shaped, as the leaves of the pine.
Also, acerate, acerous.
Origin
1775-1785
1775-85; special sense of acerose2, by misattribution of acer- to Latin acus needle, whose stem is acu- and not acer- (cf. acute)

acerose2

[as-uh-rohs] /ˈæs əˌroʊs/
adjective
1.
resembling chaff.
2.
mixed with chaff.
Origin
1715-25; < Latin acerōsus, equivalent to acer- (stem of acus) chaff + -ōsus -ose1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ace-rose

acerose

/ˈæsəˌrəʊs; -ˌrəʊz/
adjective
1.
shaped like a needle, as pine leaves
Word Origin
C18: from Latin acerōsus full of chaff (erroneously used by Linnaeus as if derived from ācer sharp)
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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