What do a.m. and p.m. stand for?

prickly ash

Also called Northern prickly ash, toothache tree. a citrus shrub or small tree, Zanthoxylum americanum, having aromatic leaves and usually prickly branches.
Hercules-club (def 2).
Origin of prickly ash
1700-10, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for prickly ash
  • Shrubs are invading the openings with gray dogwood, smooth sumac, and prickly ash forming dense thickets in places.
  • White-tailed deer seek sanctuary from winter winds in thick patches of cedar, willow, plum and prickly ash.
  • Invasive shrubs such as honeysuckle, buckthorn, and prickly ash are found in scattered pockets.
British Dictionary definitions for prickly ash

prickly ash

a North American rutaceous shrub or small tree, Zanthoxylum americanum, having prickly branches, feathery aromatic leaves, and bark used as a remedy for toothache Also called toothache tree
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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