SYN

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syn

[sin]
(organic chemistry)
In stereochemistry, on the same side of a reference plane; for example, the stereochemical outcome of an addition reaction where the new bonds are on the same side of the original pi bond is called syn addition.

SYN

On drawings, abbr. for “synthetic.”

SYN

(character)

SYN

(language)
A syntactic specification language for COPS.

["Metalanguages of the Compiler Production System COPS", J. Borowiec, in GI Fachgesprach "Compiler-Compiler", ed W. Henhapl, Tech Hochs Darmstadt 1978, pp. 122-159].