What's the difference between fuliginous and uliginous?

Fuliginous

Definition:

• (a.) Pertaining to soot; sooty; dark; dusky.
• (a.) Pertaining to smoke; resembling smoke.

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Uliginous

Definition:

• (a.) Muddy; oozy; slimy; also, growing in muddy places.

Example Sentences: