1. Waste matter (as urine or sweat but especially feces) discharged from the body
   - body waste, excretion, excreta, excrement

Derived forms: excretory products

Type of: waste, waste material, waste matter, waste product

• opsonin
• opsonisation
• opsonise
• opsonization
• opsonize
• opt
• opt out
• optative
• optative mood
• Optez
• opthalmic
• optic
• optic axis
• optic chiasm
• optic chiasma
• optic cup
• optic disc
• optic disk
• optic nerve
• optic radiation
• optic tract
• optical
• optical aberration
• optical activity
• optical art