In a quantifiable manner.

Any of an array of particles, on the inner surface of a chloroplast, in which photosynthesis takes place

Alternative form of measurement problem

(computing) The use of quantum mechanical phenomena to transcend classical time complexity limitations in computing.

(physics) A quantum number of an atomic orbital, whose possible values are related to the azimuthal quantum number, that denotes the energy levels in a subshell.

(physics) A quantum number that specifies the spin of a particle; for an electron, it may only take the values ±1/2

(physics) The quantum number (of an atomic orbital) that specifies the energy of an electron in an atom and, hence, which shell it occupies

The quality of being quantal.

(quantum mechanics) A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle

(physics) A normalized linear combination of an "up" state and a "down" state for, say, the spin of an electron.