By Stephanie Liou 26 Jun, 2011 Glutamate Toxicity. Glutamate is a powerful excitatory neurotransmitter that is released by nerve cells in the brain. It is responsible for sending signals between nerve cells, and under normal conditions it plays an important role in learning and memory.
Fg. Fg is an abbreviation used in physics and engineering for the force exerted by gravity on an object, normally represented in units such as the newton. Fg is always a conservative force. see more on Definitions.net Â».
Frozen Granular (FG). Frozen granular is a hard surface of old snow formed by granules freezing together after a rain or warm temperatures. It is generally grayish in color. Frozen granular surfaces can vary widely, but generally, all FG surfaces will support a ski pole stuck into the surface.ou can usually stab a ski pole into it, and it is generally skiable until temperatures drop drastically. Ease of skiing: 6. Wet Snow (WETSN). Powder snow which has become moist due to warm sunshine, a thaw or rainfall, or snow which fell with a high moisture content.