oreoselino . ( Of the lat. ) oreoselinum, and this of the g ?e?s??????). 1. m. herbaceous plant of the family of the Umbelíferas, with stem upright, fistuloso, rifling, six to eight decimetres of tall, large, wide and divided into slices, flowers in umbel, leaves small and whitish roots to a globose and inwardly white body, and small seed, oval, flat, drained and ribeteada.