A nodule of stone having a cavity lined with mineral or crystal matter on the inside wall.
A rounded notch or depression between two lobes or teeth in the margin of a leaf or petal.
A bay of the sea; a recess in the shore.
An irregular venous or lymphatic cavity, reservoir, or dilated vessel.
Synonym of sine.
An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.
Relating to or denoting the sinoatrial node of the heart or its function of regulating the heartbeat.
A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).