sinus definition, meaning - what is sinus in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “sinus”

See all translations

sinus

noun uk   us   /ˈsaɪ.nəs/

sinus noun (space in body)

[C] any of the spaces inside the head that are connected to the back of the nose [C] specialized medical a space or passage filled with pus (= a thick yellow liquid) that flows to the surface of the skin

sinus noun (heart)

[U] specialized medical the sinoatrial node (= tissue in the heart responsible for the heart's rhythm): The electrocardiogram will confirm sinus bradycardia.
Translations of “sinus”
in Vietnamese xoang…
in Spanish seno…
in Thai โพรงในกระดูกศีรษะ…
in Malaysian sinus…
in French (des) sinus…
in German die Nebenhöhle/Nebenhöhlen…
in Chinese (Traditional) 鼻竇,竇…
in Indonesian sinus…
in Russian пазуха, полость…
in Turkish sinüs…
in Chinese (Simplified) 鼻窦,窦道…
in Polish zatoka…
(Definition of sinus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of sinus?
Add Cambridge dictionaries to your browser to your website

Definitions of “sinus” in other dictionaries

Word of the Day

disappear off the face of the earth

to disappear completely

Word of the Day

The language of elections

by Liz Walter,
April 22, 2015
On May 7th, citizens of the UK will be going to the polls (having an election) to decide who will form the next government. This kind of election is known as a general election. The country is divided into 650 areas, called constituencies. Each constituency elects a member of parliament (MP) to

Read More 

dumbwalking noun

April 20, 2015
walking slowly, without paying attention to the world around you because you are consulting a smartphone He told me dumbwalking probably wouldn’t be a long-term problem.

Read More