Soot·y a. [Compar. Sootier superl. Sootiest.]
1. Of or pertaining to soot; producing soot; soiled by soot. “Fire of sooty coal.”
2. Having a dark brown or black color like soot; fuliginous; dusky; dark. “The grisly legions that troop under the sooty flag of Acheron.”
Sooty albatross Zool., an albatross (Phoebetria fuliginosa) found chiefly in the Pacific Ocean; -- called also nellie.
Sooty tern Zool., a tern (Sterna fuliginosa) found chiefly in tropical seas.