Chem. Also -ine. [f. mod.L. limonum (F. limon) LEMON + -IN.] (See quot.) Also (rare) Limone [as in Fr.].
1845. Gregory, Organic Chem., 459. Limonine, or Limone, a bitter crystalline matter found in the seeds of oranges, lemons, &c.
1864. Watts, Dict. Chem., III. 699. Limonin, the bitter principle contained in the pips of oranges and lemons.