Defn: The concurrence of events in time; synchronism. [R.]
Geological contemporaneity is the same as chronological synchrony.
Huxley.
SYNCHYSIS
Syn"chy*sis, n. Etym: [NL., fr. Gr.
Defn: A derangement or confusion of any kind, as of words in a sentence, or of humors in the eye. Sparkling synchysis (Med.), a condition in which the vitreous humor is softened and contains sparkling scales of cholesterin.
SYNCLASTIC
Syn*clas"tic, a. Etym: [Pref. syn- + Gr. kla^n to break.] (Math.
Physics)
Defn: Curved toward the same side in all directions; — said of surfaces which in all directions around any point bend away from a tangent plane toward the same side, as the surface of a sphere; — opposed to anticlastic. Sir W. Thomson.
SYNCLINAL
Syn*cli"nal, a. Etym: [Gr.
1. Inclined downward from opposite directions, so as to meet in a common point or line.
2. (Geol.)
Defn: Formed by strata dipping toward a common line or plane; as, a synclinal trough or valley; a synclinal fold; — opposed to anticlinal.
Note: A downward flexure in the case of folded rocks makes a synclinal axis, and the alternating upward flexure an anticlinal axis.