Definition: A particle that is a constituent of ordinary matter.
Generalizations:
Specializations:
Involved in:
related field(s)- particle physics
potential real-world examples-
... is 1,433.7/km² (3,704.7/mi²). There are 1,494 housing units at an average density of 427.3/km² (1,104.1/mi²). The racial makeup of the town is ...