'Cirri' definitions:
Definition of 'Cirri'
From: GCIDE
- Cirrus \Cir"rus\, n.; pl. Cirri. [L., lock, curl, ringlet.] [Also written cirrhus.] [1913 Webster]
- 1. (Bot.) A tendril or clasper. [1913 Webster]
- 2. (Zool.) (a) A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri. (b) The jointed, leglike organs of Cirripedia. See Annelida, and Polych[ae]ta. [1913 Webster]
- Note: In some of the inferior animals the cirri aid in locomotion; in others they are used in feeding; in the Annelida they are mostly organs of touch. Some cirri are branchial in function. [1913 Webster]
- 3. (Zool.) The external male organ of trematodes and some other worms, and of certain Mollusca. [1913 Webster]
- 4. (Meteor.) See under Cloud. [1913 Webster]