Glia is a 4 letter English word. It's valid Words with friends word worth 7 points.
You can make 31 anagrams from letters in glia (agil).
First recorded in 1885-90, glia is from the Late Greek word glía glue
It presupposes an active interposition of the glia cells between the axon of one neuron and the dendrons of another.
That, said Fields, "was a moment that focused our attention on glia."