gel-, gela-, gelati-, gelatino-, geli-, gelo-
(Latin: to freeze; frosting; cold; then, to congeal, and finally: gelatin)
Later it came to mean "to congeal"; having to do with "congealing" or with "gelatin, a protein derived from the partial hydrolysis of animal skin, connective tissue, and bone".
Don't confuse words from this Latin element with those from Greek gelo-, geloto-, meaning "laugh, laughing, laughter".
Blasting Gelatin is an explosive consisting of collodion-cotton (a type of nitrocellulose or gun cotton) dissolved in nitroglycerine and mixed with wood pulp and sodium or potassium nitrate.
One of the cheapest explosives, it is mostly used for large-scale blasting in the construction and mining industries. Unlike gunpowder, it burns slowly and cannot explode without a detonator, so it can be stored safely.
Gelignite was invented in 1875 by Alfred Nobel, who had earlier invented dynamite. Unlike dynamite, it is not subject to the dangerous problem of sweating nor the leaking of unstable nitroglycerine from the solid matrix.
2. A medicated skin preparation made from glycerin and glycerinated gelatin.
A bougie (boo ZHEE, BOO zhee) is a slender cylindrical instrument of rubber, waxed silk, or other material, for introduction into the body passages; such as, the urethra, anus, or other canal.
It is also defined as a suppository, particularly for insertion into the urethra.
2. A colloidal gel in which water is the dispersion medium.
Hydrogel is a network of polymer chains that are water-soluble, sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are superabsorbent (they can contain over 99% water) natural or synthetic polymers.
Some uses for hydrogel include: disposable diapers that "capture" urine, or in sanitary towels, and for use with contact lenses (silicone hydrogels, polyacrylamides).