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Definitions

sinus

[sahy-nuhs] / ˈsaɪ nəs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The seeds of Scott’s journey into offshore medical treatments can be traced to about 2002, when he began to experiment with fasting as a way to prevent persistent sinus infections.

From Slate • Mar. 30, 2026

It is also included in a wide range of over-the-counter products for colds, flu, sinus symptoms, and menstrual discomfort.

From Science Daily • Jan. 18, 2026

Insmed slumped 15% after the pharmaceutical company ended development of a sinus drug following a failed study.

From Barron's • Dec. 18, 2025

Patel’s opening statement was punctuated by a series of snorts so loud that it seemed he might soon eject a noodle from his sinus cavity.

From Salon • Sep. 17, 2025

Not made freaks: not men covered head to toe in tattoos, not women who regurgitate wallets and lightbulbs on command, not moss-haired girls or men who pound stakes into their sinus cavities.

From "Water for Elephants" by Sara Gruen