noun a hollow cavity within a bone or other tissue, especially one in the bones of the face connected to the nasal cavities.
In mathematics, sinus is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the side opposite the angle to the length of the hypotenuse.
In medicine, sinus can refer to a channel or passage leading to a cavity, such as the nasal sinuses or the sinus node in the heart.
In anatomy, sinus refers to a cavity or hollow space within a bone or other tissue, such as the paranasal sinuses in the skull.
In medical writing, sinus may refer to the paranasal sinuses, air-filled spaces in the bones of the face.
In psychology, sinus may refer to the concept of a 'sinusoidal wave' in the context of brain waves and neural activity.
In music theory, sinus may refer to the 'sine wave' which is a fundamental waveform used in sound synthesis.
In engineering, sinus may refer to the 'sine function' which is commonly used in signal processing and control systems.
In mathematics, sinus may refer to the trigonometric function 'sine' which relates the angles of a triangle to the lengths of its sides.