atomic theory

2 ENTRIES FOUND:

atomic theory

noun

Definition of ATOMIC THEORY

1
: a theory of the nature of matter: all material substances are composed of minute particles or atoms of a comparatively small number of kinds and all the atoms of the same kind are uniform in size, weight, and other properties—called also atomic hypothesis
2
: any of several theories of the structure of the atom; especially : one based on experimentation and theoretical considerations holding that the atom is composed essentially of a small positively charged comparatively heavy nucleus surrounded by a comparatively large arrangement of electrons

Seen & Heard

What made you want to look up atomic theory? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More