I remember first encountering this word while reading a book (unfortunately, I don’t remember which book). And while I should have been able to figure out the meaning just from context, I looked it up nonetheless. “About all he remembered of the lovely woman were her dark amygdaline eyes . . . ”
\ uh–mig-duh-lin, -lahyn \, adjective;
This word is from the Latin amygdalinus and the Greek amygdálinos, menaing “of almonds.”
Some related adjectives include: amygdaloid, amygdalate, amygdaliform, and amygdalaceous.
Source: http://www.dictionary.com and The Highly Selective Dictionary of Golden Adjectives for the Extraordinarily Literate by Eugene Ehrlich.