zygal

As an adjective zygal

is shaped like a yoke, or like the letter H.

As a noun zyga is

plural of zygon.

As adjectives the difference between zygal and pygal

is that zygal is shaped like a yoke, or like the letter h while pygal is (anatomy) situated in the region of the rump, or posterior end of the backbone; applied especially to the posterior median plates in the carapace of chelonians.

Zygon is a related term of zygal.

As an adjective zygal

is shaped like a yoke, or like the letter H.

As a noun zygon is

in the cerebrum, a short crossbar fissure that connects the two pairs of branches of a larger zygal (H-shaped) fissure.