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

Type of: scientific theory

• heterocercal
• heterocercal fin
• heterochromatic
• heteroclite
• heterocycle
• heterocyclic
• heterocyclic compound
• heterocyclic ring
• heterodactyl
• heterodactyl foot
• Heterodon
• heterodox
• heterodoxy
• heterodyne
• heterodyne oscillator
• heterodyne receiver
• heteroecious
• heterogamy
• heterogeneity
• heterogeneous
• heterogeneousness
• heterogenesis
• heterogenous
• heterograft
• heteroicous