sinus

Fetched 2026-10-26 (cache).

Synonyms: situs, minus, sins, sinks, linus, sines, ninus, snus, pinus, sings, spinus

Antonyms: situs, minus, sins, sinks, linus, sines, ninus, snus, pinus, sings, spinus

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|anatomy|zootomy}} A [[pouch]] or [[cavity]] in a [[bone]] or other [[tissue]], especially one in the bones of the [[face]] or [[skull]] connecting with the [[nasal cavity|nasal cavities]] {{gl|the [[paranasal sinus]]}}.
2. {{lb|en|anatomy}} An [[irregular]] [[venous]] or [[lymphatic]] [[cavity]], [[reservoir]], or [[dilated]] [[vessel]].
3. {{lb|en|pathology}} An [[abnormal]] [[cavity]] or [[passage]] such as a [[fistula]], leading from a [[deep-seated]] [[infection]] and [[discharge|discharging]] [[pus]] to the surface.
4. {{lb|en|botany}} A [[rounded]] [[notch]] or [[depression]] between two [[lobe]]s or [[tooth|teeth]] in the [[margin]] of a [[leaf]] or [[petal]].
5. {{lb|en|geography}} A [[bay]] of the [[sea]]; a [[recess]] in the [[shore]].
6. {{lb|en|trigonometry}} {{syn of|en|sine}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.