Word origin · etymology
Descriptive participial phrase.
Separating means moving apart after contact; the label describes an aspect whose exact meeting has already passed.
How we know · epistemology
Local motion test
Relative motion shows the contact moving away from exactness. Interpreting that geometry as a completed life event requires a separate rule; it does not independently identify what happened.
Connected concepts
Browse other concepts in Aspects & angular relationships →
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.