Sinus

·pl of Sinus.

II. Sinus ·noun A cavity; a depression.

III. Sinus ·noun A dilated vessel or canal.

IV. Sinus ·noun An opening; a hollow; a bending.

V. Sinus ·noun A depression between adjoining lobes.

VI. Sinus ·noun A bay of the sea; a recess in the shore.

VII. Sinus ·noun A cavity in a bone or other part, either closed or with a narrow opening.

VIII. Sinus ·noun A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.