| Word | Definitions | Synonyms |
|---|---|---|
| siriasis | (noun) sudden prostration due to exposure to the sun or excessive heat | Synonyms: insolation, sunstroke, thermic fever |
| siris | (noun) large spreading Old World tree having large leaves and globose clusters of greenish-yellow flowers and long seed pods that clatter in the wind | Synonyms: Albizia lebbeck, Albizzia lebbeck, siris tree |