the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to emerald; resembling emerald; of an emerald green.
The Century Dictionary and Cyclopedia
Of a green color like that of smaragd—that is, of any brilliant green: an epithet used loosely and in different senses.
Word Usage
"If the film you are watching is in color and features quirky kids striving to spell the word "smaragdine," you put the wrong DVD in your Netflix queue."