Related Words

Diatom: Dominant planktonic algal form with siliceous test, occurring as a single cell or as a chain of cells

Diatomic Molecule: A molecule that contains only two atoms. All of the noninert gases occur as diatomic molecules; e. G. Hydrogen, oxygen, nitrogen, fluorine, and chlorine are H2, O2, N2, F2, and Cl2, respectively.

Spring Diatom Increase: The major rapid population increase of diatoms, occurring in the spring in temperate-boreal latitudes

Diatom Ooze: A seafloor sediment that consists of at least 30% diatom remains.

Diatomaceous Earth: Fossilized deposits of diatoms; used for abrasives, polishes and as a filtering agent.

Diatomite: A light colored, fine-grained siliceous sedimentary rock that forms from a sediment rich in diatom remains.

Oxygen (O): Atomic number: 8, Atomic mass: 15.999 g.mol -1, Electronegativity: 3.5, Density: 1.429 kg/m3 at 20°C, Melting point: -219 °C, Boiling point: -183 °C, Vanderwaals radius: 0.074 nm, Ionic radi . . . View Full Definition

Nitrogen (N): Atomic number: 7, Atomic mass: 14.0067 g.mol -1, Electronegativity: 3.0, Density: 1.25*10-3 g.cm-3 at 20°C, Melting point: -210 °C, Boiling point: -195.8 °C, Vanderwaals radius: 0.092 nm, Io . . . View Full Definition

Hydrogen (H): Atomic number: 1, Atomic mass: 1.007825 g.mol -1, Electronegativity: 2.1, Density: 0.0899*10 -3 g.cm -3 at 20 °C, Melting point: - 259.2 °C, Boiling point: - 252.8 °C, Vanderwaals radius: 0. . . . View Full Definition

Grazer: A predator that consumes organisms far smaller than itself (e.g., copepods graze on diatoms)