
1) Obsolete scientific theory
Found on
https://www.crosswordclues.com/clue/antiperistasis

Antiperistasis, in philosophy, is a general term for various processes, real or contrived, in which one quality heightens the force of another, opposing, quality. Historically, this explanation was applied to numerous phenomena, from the interaction of quicklime with cold water, to the origin of thunder and lightning. The term is Greek, ἀντι
Found on
http://en.wikipedia.org/wiki/Antiperistasis

opposition or resistance
Found on
http://phrontistery.info/a.html

• (n.) Opposition by which the quality opposed asquires strength; resistance or reaction roused by opposition or by the action of an opposite principle or quality.
Found on
http://thinkexist.com/dictionary/meaning/antiperistasis/
An`ti·pe·ris'ta·sis noun [ Greek ...; ... against + ... a standing around, from ... to stand around; ... around + ... to stand.] Opposition by which the quality opposed asquires strength; resistance or reaction roused by opposition or by the action of an opposite principle or quality.
Found on
http://www.encyclo.co.uk/webster/A/97
No exact match found.