Dictionaries, Thesauruses, Pictures, and Press Releases
- Frenet, Jean-Fréd
- Frenicle De Bessy, Bernard
- Frenkel, Yakov Ilyich
- frenulum
- Frenzel, Friedrich August
- Frere, John
- Fresenius, Carl Remigius
- fresh water
- fresh water
- fresh water
- freshwater butterfly fish
- freshwater mullet
- freshwater turtles
- Fretted and Chaotic Hummocky Terrain
- Freudenberg, Karl Johann
- Freundlich, Herbert Max Finlay
- Frey, Maximilian Ruppert Franz von
- Freycinetia
- friable
- friable