sectant

As nouns the difference between terms and sectant

is that terms is while sectant is one of the portions of space bounded by the three coordinate planes.

As a noun sectant

is one of the portions of space bounded by the three coordinate planes.

As an adjective secant is

intersecting.

As nouns the difference between sextant and sectant

is that sextant is a navigational device for deriving angular distances between objects so as to determine latitude and longitude while sectant is one of the portions of space bounded by the three coordinate planes.

As a proper noun Sextant

is the constellation Sextans.

As an adjective spectant

is looking forward.

As a noun sectant is

one of the portions of space bounded by the three coordinate planes.

In crystallography|lang=en terms the difference between sectant and hemiholohedral

is that sectant is (crystallography) one of the parts of a crystal into which it is divided by the axial planes while hemiholohedral is (crystallography) presenting hemihedral forms in which half the sectants have the full number of planes.

As a noun sectant

is one of the portions of space bounded by the three coordinate planes.

As an adjective hemiholohedral is

(crystallography) presenting hemihedral forms in which half the sectants have the full number of planes.