hexad

As nouns the difference between hexad and sextic

is that hexad is a group of six while sextic is (mathematics) a quantic of the sixth degree.

As an adjective sextic is

(mathematics) of the sixth degree or order.

As nouns the difference between hexad and heptad

is that hexad is a group of six while heptad is a group of seven things.

As nouns the difference between hexad and pentad

is that hexad is a group of six while pentad is a group or series of five things.

As an adjective hexed

is cursed; afflicted with bad luck.

As a verb hexed

is (hex).

As a noun hexad is

a group of six.

As nouns the difference between hexad and hexade

is that hexad is a group of six while hexade is a series of six numbers.

As a proper noun head

is , from residence near a hilltop or the head of a river, or a byname for someone with an odd-looking head.

As a noun hexad is

a group of six.