'Parelle' definitions:

Definition of 'Parelle'

From: GCIDE

Parella \Pa*rel"la\, Parelle \Pa`relle\, n. [Cf. F. parelle.] (Bot.) (a) A name for two kinds of dock (Rumex Patientia and Rumex Hydrolapathum). (b) A kind of lichen (Lecanora parella) once used in dyeing and in the preparation of litmus. [1913 Webster]