synovial, -e, adj., (anat.) synovial.
synovie, n.f., (anat.) synovia.
syntaxe, n.f., syntax.
syntaxique, adj., syntactic, syntactical.
synthèse, n.f., synthesis, composition.
synthétique, adj., synthetic, synthetical.
synthétiquement, adv., synthetically.
syphilis (-liss), n.f., syphilis.
syphilitique, adj., syphilitic.
syphon, n.m. V. siphon.