1. (biology) a scientific theory of the origin of species of plants and animals
   - theory of evolution, evolutionism

Type of: scientific theory

• yodeling
• yodeller
• yodelling
• yodh
• yodle
• yoga
• Yogacara
• yogh
• yoghourt
• yoghurt
• yogi
• Yogi Berra
• yogic
• yogistic
• yogourt
• yogurt
• yoicks
• yoke
• yokefellow
• yokel
• yokel-like
• yokelish
• Yoko Ono
• oscillate
• oscillating