SINUS


Meaning of SINUS in English

transcription, транскрипция: [ ˈsī-nəs ]

noun

Etymology: Middle English, from Medieval Latin, from Latin, curve, fold, hollow

Date: 15th century

: cavity , hollow : as

a. : a narrow elongated tract extending from a focus of suppuration and serving for the discharge of pus

b.

(1) : a cavity in the substance of a bone of the skull that usually communicates with the nostrils and contains air

(2) : a channel for venous blood

(3) : a dilatation in a bodily canal or vessel

c. : a cleft or indentation between adjoining lobes (as of a leaf or corolla)

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.