Definition of "fuliginous" [fu•lig•i•nous]

• Sooty. (adjective)
• Colored by or as if by soot. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "On my way to trying to find that 'F' word, I learned that "fuliginous" means colored by soot, and the third definition of "flocculus" is a cloudlike mass of gas appearing on the sun's surface."
• "Part of the blood, it was supposed, went through what we now call the pulmonary arteries (Figure 1), and, branching out there, gave exit to certain "fuliginous" products, and at the same time took in from the air a something which Galen calls the"
• "By reason of the excessive coldness of the air, hindering the ascent of the smoke, was so filled with the fuliginous steam of the sea-coal, that hardly can one see across the street, and this filling the lungs with its gross particles exceedingly obstructed the breast, so as one would scarcely breathe."