noun
A semi-solid to almost solid colloid of a solid and a liquid, such as jelly, cheese or opal.
Any gel intended for a particular cosmetic use, such as for styling the hair.
A film of flexible transparent plastic (such as acetate, celluloid, or cellophane) suitable for making superimpositions or diapositives (image to overlay on other images, especially for overhead projectors); a digital virtual equivalent of this.
verb
(transitive) To apply (cosmetic) gel to (the hair, etc).
(intransitive) To become a gel.
(intransitive) To develop a rapport.
(intransitive, figurative) To come together to form something; to cohere.
noun
(British, slang) A girl.