quindecuplet

As nouns the difference between terms and quindecuplet

is that terms is while quindecuplet is (rare|particle physics) a multiplet of fifteen subatomic particles.

As a noun quindecuplet is

(rare|particle physics) a multiplet of fifteen subatomic particles.

As nouns the difference between particle and quindecuplet

is that particle is a very small piece of matter, a fragment; especially, the smallest possible part of something while quindecuplet is (rare|particle physics) a multiplet of fifteen subatomic particles.

As an adjective subatomic

is relating to particles that are constituents of the atom, or are smaller than an atom; such as proton, neutron, electron, etc.

As a noun quindecuplet is

a multiplet of fifteen subatomic particles.

As a numeral fifteen

is the cardinal number occurring after fourteen (14) and before sixteen (16).

As a noun quindecuplet is

a multiplet of fifteen subatomic particles.

As nouns the difference between multiplet and quindecuplet

is that multiplet is a spectral line that has multiple components while quindecuplet is a multiplet of fifteen subatomic particles.