Words I didn't know before now: koel - an Asian and Australasian cuckoo with a call that resembles its name, the male typically having all-black plumage.
sidalcea - a herbaceous North American plant of the mallow family, several kinds of which are cultivated as ornamentals.
azidothymidine - trademark for the drug zidovudine.
picayune - adjective - petty; worthless - noun - a small coin of little value, esp. a 5-cent piece.
uintaite - a pure form of asphalt mined in the Uinta Mountains and used to soften petroleum products, as well as in manufacturing paints and inks.
cicatrize - (with reference to a wound) heal by scar formation