In physics|lang=en terms the difference between excited and photoassociation

is that excited is (physics) being in a state of higher energy while photoassociation is (physics) the association of two atoms, under the influence of laser light, to form an excited diatomic molecule.

As an adjective excited

is having great enthusiasm.

As a verb excited

is .

As a noun photoassociation is

(physics) the association of two atoms, under the influence of laser light, to form an excited diatomic molecule.

As nouns the difference between diatomic and photoassociation

is that diatomic is (chemistry) a diatomic molecule or other species while photoassociation is (physics) the association of two atoms, under the influence of laser light, to form an excited diatomic molecule.

As an adjective diatomic

is consisting of two atoms.

As nouns the difference between molecule and photoassociation

is that molecule is molecule while photoassociation is (physics) the association of two atoms, under the influence of laser light, to form an excited diatomic molecule.

As nouns the difference between dominance and kination

is that dominance is the state of being dominant; of prime importance; supremacy while kination is (astronomy) a dominance of kinetic energy over potential energy.

As nouns the difference between unit and millarcsecond

is that unit is a standard measure of a quantity while millarcsecond is a unit of angle equal to one thousandth of an arcsecond.

As an adjective unit

is for each unit.

As nouns the difference between angle and millarcsecond

is that angle is while millarcsecond is (astronomy) a unit of angle equal to one thousandth of an arcsecond.

As nouns the difference between thousandth and millarcsecond

is that thousandth is (singular only) the person or thing in the thousandth position while millarcsecond is (astronomy) a unit of angle equal to one thousandth of an arcsecond.

As an adjective thousandth

is the ordinal form of the number one thousand.

As nouns the difference between arcsecond and millarcsecond

is that arcsecond is a unit of angle; 1/60th of an arcminute, or 1/3600th of a degree while millarcsecond is (astronomy) a unit of angle equal to one thousandth of an arcsecond.

As a verb minimize

is to make (something) as small or as insignificant as possible.

As a noun minimizer is

that which minimizes.

As adjectives the difference between extensive and nonextensive

is that extensive is in the nature of an extent, wide, widespread while nonextensive is not extensive.