Synedral, si-nē′dral, adj. (bot.) growing on the angle of a stem.—Also Synē′drous. [Gr. synedros, sitting together—syn, together, hedra, a seat.]

Synedrion, si-ned′ri-on, n. a judicial assembly, a sanhedrim—also Syned′rium.—adj. Syned′rial. [Sanhedrim.]

Synema, si-nē′ma, n. (bot.) the column of combined filaments in a monadelphous flower. [Gr. syn, together, nēma, a thread.]

Syneresis, Synæresis, si-ner′e-sis, n. the coalescence of two vowels or syllables—opp. to Diæresis. [Gr. syn, together, hairein, to take.]

Synergism, sin′ėr-jizm, n. the doctrine that the human will and the Divine Spirit are two efficient agents that co-operate in regeneration—ascribed to Melanchthon.—adj. Synerget′ic.—n. Syn′ergist, one maintaining the doctrine of synergism.—adj. Synergist′ic.—n. Syn′ergy, combined action. [Gr. synergia, co-operation—syn, together, ergein, to work.]

Synesis, sin′e-sis, n. a grammatical construction in harmony with the sense rather than with strict syntax. [Gr., 'understanding.']

Syngenesious, sin-je-nē′shus, adj. (bot.) cohering into a ring, as the anthers of Compositæ, &c.—those plants which show this forming the 19th class in the Linnean system, the Syngenē′sia. [Gr. syn, with, genesis, generation.]

Syngenesis, sin-jen′e-sis, n. the theory of reproduction which makes the embryo the product of both male and female by the union of spermatozoon and ovum: the theory that the germ so formed contains the germs of all future generations—opp. to Epigenesis.—adj. Syngenet′ic. [Gr. syn, with, genesis, generation.]

Syngraph, sing′graf, n. a writing signed by both or all the parties thereto. [Gr. synggraphēsyn, with, graphein, to write.]

Synizesis, sin-i-zē′sis, n. the union into one syllable of two vowels incapable of forming a diphthong: closure of the pupil of the eye, with loss of sight. [Gr. syn, with, hizein, to place.]