-ation, -ization (-iz[e] + -ation); -isation (British spelling variation)

1. A cross made of four capital gammas; a swastika; a fylfot (a decorative or religious symbol in the form of a swastika).
2. A Greek cross formed of four capital gammas all facing outward so that the ends of the arms of the cross are open.
3. A pattern consisting of four capital Greek gammas (tetra-gammadion); especially, when joined at the center to form a swastika or a very old symbol used by many ancient cultures.

An Example of a Gammadion or a Gammation Symbol

1. The conversion of a substance into a jellylike mass.
2. The formation of gelatin.

The act of process of converting into gelatin, or a substance like jelly.

1. Solidification by cold, freezing.
2. The process of gel formation.
3. The change of a colloid from a sol to a gel.
4. The process of becoming solid by cooling; a cooling and solidifying.

The evolutionary development of plant or animal groups whose members all have similar general features and are able to produce young plants or animals together: "An evolutionary change leading to the rise of new species resulting from the separations of biological populations into mutually exclusive geographic regions, thereby creating distinct gene pools."

"Differentiation of populations of biological groups in various geographical isolations to the point where they are recognized as separate species."

A theory stating that human culture and activity can be explained by the geographical circumstances or conditions in which they are found.

For example, there is the idea that a desert environment will produce a nomadic culture because desert terrain makes it easier for movement and the lack of consistent rainfall stimulates such movement.

1. Temporal or short-time changes in the geomagnetic field, both long-term (secular) and short-term (transient).
2. Any change that happens to the geomagnetic field, either short or long term.

The ratio (relation in degree or number between two similar things) of a solar collector aperture area (amount of light admitted) to the absorber area or the surface on a solar collector that absorbs solar radiation.

1. A navigational technique in which position is determined relative to terrestrial reference points; such as, distinguished from celestial or inertial (inability or unwillingness to move or act) navigation.
2. Navigation by means of observations of terrestrial features.

Apparently fixed in position in relation to the earth; describing an artificial satellite that travels above the equator and at the same speed as the earth rotates; so, that it constantly appears at the same point in the sky.

1. The origin of some development: "There was the germination of their discontent."
2. The process where a seed, spore, or zygote begins to sprout, to grow, or to develop; usually after it has been dormant for a time while waiting for the right growing conditions.
3. The first outward sign of growth of a reproductive body; such as, a spore or pollen grain.

The term is commonly applied to seeds, in which germination is determined by such external conditions as water availability, temperature, and light; as well as, internal biochemical status that is appropriate before germination can occur.

Seed germination may be either epigeal, in which the cotyledons appear above the ground; or hypogeal, in which the cotyledons remain below the ground.