gel

nouns

a colloid in a more solid form than a sol
colloidal gel, gel
a thin translucent membrane used over stage lights for color effects
gel, gelatin

verbs

become a gel
"The solid, when heated, gelled"
gel
is a type of (narrower)
undergo a change; become different in essence; losing one's or its original nature
"She changed completely as she grew older"; "The weather changed last night"
change
apply a styling gel to
"she mousses her hair"
gel, mousse