Dictionaries, Thesauruses, Pictures, and Press Releases
- species–area curve
- specific humidity
- specific humidity
- specific mate recognition system
- specific retention
- specific retention
- specific-gravity determinations
- spectacled caiman
- spectral hue
- spectral radiance
- spectrin
- spectrochemical analysis
- spectroradiometer
- specular
- specularite
- speedwell
- spelean
- spelean
- speleothem
- Spencer, Leonard James