Sec"tant (?), n. [L. secare, sectum, to cut.] One of the portions of space bounded by the three coordinate planes. Specif. (Crystallog.), one of the parts of a crystal into which it is divided by the axial planes.

Sec"tant (?), n. [L. secare, sectum, to cut.] One of the portions of space bounded by the three coordinate planes. Specif. (Crystallog.), one of the parts of a crystal into which it is divided by the axial planes.