saturāˈtion noun

1. The state of being saturated
2. The state of the atmosphere when fully saturated with water vapour at a given temperature
3. The state of a ferromagnetic material which has been magnetized to the fullest possible extent (physics)
4. The conversion of an unsaturated compound to a saturated compound (chem)
5. The condition where a field applied across an ionization chamber is sufficient to collect all ions produced by incident radiation (nuclear eng)
6. The degree to which a colour departs from white and approaches a pure spectral wavelength, desaturation being the inverse of this (physics)

Of very great, or greatest possible, intensity (eg saturation bombing)

satˈurātor noun

saturated fat noun

An animal fat (usu solid, eg lard, butter) containing a high proportion of saturated fatty acids

saturation coefficient noun (building)

The ratio between a building material's natural capacity to absorb moisture and its porosity

saturation diving noun

Diving to great depths using a chamber at the same pressure as the water, to which the diver can return frequently for rest spells, etc, thus reducing the frequency of (and hence time spent in) decompression

saturation point noun

1. The point at which saturation is reached
2. Dewpoint
3. The limit in numbers that can be taken in, provided with a living, used, sold, etc
4. The limit of emotional response, endurance, etc