noun: (anatomy, plural "zyga") In the cerebrum, a short crossbar fissure that connects the two pairs of branches of a larger zygal (H-shaped) fissure.
noun: (music, plural "zygons") An affinity or connection in a piece of music between tones, chords, or phrases, such that one part appears to repeat, to imitate, or to derive from the other, especially when perceived as an organising principle in the music; a zygonic relationship.
