[1] : The Collaborative International Dictionary of English v.0.48

acerose \ac"erose`\, a. a l. acerosus chaffy, fr. acus, gen.
   aceris, chaff; b as if fr. l. acus needle: cf. f.
   ac'ereux. bot.
   a having the nature of chaff; chaffy.
   b needle-shaped, having a sharp, rigid point, as the leaf
       of the pine.
       1913 webster

[2] : WordNet (r) 2.0

acerose
     adj : narrow and long and pointed; as pine leaves syn: acerate,
            acicular, needle-shaped
see also:
acerate acicular needle-shaped 

Acerose >> A Words
Acerose, definition of term: Acerose
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