(obsolete) An atomist.

plural of atomic pile

(obsolete) atomism

(US, slang) A prank in which a person's underpants are pulled up sharply from behind up over the head, or higher, in order to wedge the clothing uncomfortably between the person's buttocks.

(physics, atomic) The branch of physics that studies the internal structure of atomic nuclei.

(physics, atomic) Synonym of atomic physics

(chemistry, physics) A quantitative analytical technique in which the content of various elements are measured via their absorption of light

plural of atomic wedgie

(physics, chemistry) A form of analytical spectroscopy that measures the radiation emitted at specific wavelengths by the atoms in a very hot sample

plural of atomic