1. In a gradual manner
   "the snake moved gradually toward its victim"
   - bit by bit, step by step

See also: gradual

• family Dipsacaceae
• family Dipterocarpaceae
• family Discoglossidae
• family doctor
• family Doliolidae
• family Dracunculidae
• family Drepanididae
• family Dromaeosauridae
• family Droseraceae
• family Drosophilidae
• family Dryopteridaceae
• family Dugongidae
• family Dytiscidae
• family Ebenaceae
• family Echeneidae
• family Echeneididae
• family Edaphosauridae
• family Eimeriidae
• family Elaeagnaceae
• family Elaeocarpaceae
• family Elapidae
• family Elateridae
• family Electrophoridae
• family Eleotridae
• family Elephantidae