Encyclopedias, Almanacs, Transcripts, and Maps
- dip, magnetic
- Diplopoda (Millipedes)
- Diplura (Diplurans)
- Dippers (Cinclidae)
- Diprotodontia (Koala, Wombats, Possums, Wallabies, and Kangaroos)
- Diptera (Mosquitoes, Midges, and Flies)
- Discipleship
- discontinuity
- Disk-Winged Bats (Thyropteridae)
- Dismemberment
- Dissolved Solids
- Distribution and Biogeography
- Distribution and Biogeography
- Distribution and Biogeography
- District Heating and Cooling
- Dīvālī
- Divination: An Overview
- Divination: Greek and Roman Divination
- Divination: Ifa Divination
- Diving-Petrels (Pelecanoididae)