1. (physics) the theory that space and time are relative concepts rather than absolute concepts
   - relativity, theory of relativity, relativity theory

Type of: scientific theory

• annotate
• annotating
• annotation
• annotative
• annotator
• announce
• announced
• announcement
• announcer
• annoy
• annoyance
• annoyed
• annoyer
• annoying
• annoyingly
• annual
• annual fern
• annual general meeting
• annual parallax
• annual ring
• annual salt-marsh aster
• annualise
• annualize
• annually
• annualry