3 definitions
Definition.com
A Corpuscle (n.) need not be a tiny ball on a track: it may be anything that acts all at once or never, like a photon.
Definition.com
A Particle (n.) is a knot in a field: the singular heart of a wave that reaches everywhere, so that obstacles far away bend its path.
Definition.com
A Wave (n.) is the particle's way of feeling the world: the edge of a screen acts on a photon only through the wave, which serves as the go-between of their energy.