1. Sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans

Derived forms: sapropels

Type of: gloop [Brit, Cdn], goo, gook, goop [N. Amer], guck [N. Amer], gunk, muck, ooze, slime, sludge, thick

Encyclopedia: Sapropel

• spirit off
• spirit rapper
• spirit rapping
• spirit stove
• spirit up
• spirit world
• spirited
• spiritedly
• spiritedness
• spiritise
• spiritism
• spiritist
• spiritize
• spiritless
• spiritlessness
• spiritous
• spirits
• spirits of ammonia
• spirits of wine
• spiritual
• spiritual being
• spiritual bouquet
• spiritual domain
• Spiritual Jewel
• spiritual leader