| Word | Definitions | Synonyms |
|---|---|---|
| psylla | (noun) small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices | Synonyms: jumping plant louse, psyllid |
| psyllid | (noun) small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices | Synonyms: jumping plant louse, psylla |
| psyllium | (noun) plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative | Synonyms: fleawort, Plantago psyllium, Spanish psyllium |