1. Omitting no one; from the door of one house to that of the next
   "house-to-house coverage"
   - door-to-door

See also: comprehensive

• genus Cordylus
• genus Coregonus
• genus Coreopsis
• genus Coriandrum
• genus Corixa
• genus Cornus
• genus Corokia
• genus Coronilla
• genus Corozo
• genus Cortaderia
• genus Corticium
• genus Cortinarius
• genus Corvus
• genus Coryanthes
• genus Corydalis
• genus Corydalus
• genus Corylopsis
• genus Corylus
• genus Corynebacterium
• genus Corypha
• genus Coryphantha
• genus Corythosaurus
• genus Coscoroba
• genus Cosmocampus
• genus Cosmos