posted on Jul, 30 2013 @ 05:55 PM
A term of art
is a term (or word or phrase) that can have a common meaning, but has a specific
meaning in some particular context. It is often "technical jargon".
So "chemtrail".....as a portmanteau of "CHEMical" and "TRAIL" it can reasonably be assumed that any trail of chemicals, anywhere, is a
However in the context of secret conspiracies, the term refers exclusively to long white trails from high flying aircraft that (cough) are generated,
look and behave exactly like contrails.
From time to time someone tries to use the common-or-garden meaning to expand the "discussion" to include various chemical trails that are not long
white lines from high flying aircraft - such as cloud seeding, pesticide/agricultural spraying, sounding rocket tracers, etc.
this misuse is quite common in various theories
as an attempt to confuse or misrepresent an
argument - perhaps the most common version is labeling scientific theories as "just a theory", whereas
in science "theory" is a term of art
that has a very specific meaning that is quite
different from the common usage.