Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Exine" Definition
noun
The outer layer of the wall of a spore or pollen grain. Also called exosporium.
Source: American Heritage Dictionary
The outer of the two major layers forming the walls of some spores and especially pollen grains.
Source: Merriam-Webster