An American butterfly, Polygonia interrogationis, whose wings are mottled with various shades of red and brown and have violet tips.

past participle of swim upstream

(transitive) To make (bacteria or other cells) more susceptible to the action of phagocytes by use of opsonins. / (intransitive) To become more susceptible to the action of phagocytes by use of ops...

(organic chemistry) A macrocycle that inhibits telomerase