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A tribe of bivalve mollusks in which the posterior mantle border is prolonged into two tubes or siphons. Called also Siphoniata. See Siphon, 2 (a), and Quahaug.

A tribe of gastropods having the mantle border, on one or both sides, prolonged in the form of a spout through which water enters the gill cavity. The shell itself is not always siphonostomatous in this group.

, or other like garment; the part below the waist; as, the skirt of a coat, a dress, or a mantle.

Limax and several related genera, in which the shell is either small and concealed in the mantle, or altogether wanting. They are closely allied to the land snails.

The mantle, or pallium, of a bird.

To mark with colors or embroidery in long tracts. The herald's mantle is streamed with gold. Bacon.

To dismantle; as, to strip a ship of rigging, spars, etc.

A sort of tunic or mantle formerly worn for protection from the weather. When worn over the armor it was commonly emblazoned with the arms of the wearer, and from this the name was given to the garment adopted for heralds. [Spelt also taberd.]

ch the gills are usually situated on one side of the back, and protected by a fold of the mantle. When there is a shell, it is usually thin and delicate and often rudimentary. The aplysias and the bubble shells are examples.

Having the gills covered by the mantle; of or pertaining to the Tectibranchiata. -- n.

See Mantle, n., 3 (a).

Having a tunic, or mantle; of or pertaining to the Tunicata.

Animal cellulose; a substance present in the mantle, or tunic, of the Tunicates, which resembles, or is identical with, the cellulose of the vegetable kingdom.

also used figuratively. [Obs.] Hood my unmanned blood bating in my cheeks With thy black mantle. Shak.

Outer. "Thine utter eyen." Chaucer. [Obs.] "By him a shirt and utter mantle laid." Chapman. As doth an hidden moth The inner garment fret, not th' utter touch. Spenser.

Pale or light blue. [Obs.] "Watchet mantles." Spenser. Who stares in Germany at watchet eyes Dryden.

he combustion of a mixture of air and gas or vapor is employed to heat to incandescence a mantle composed of thoria and ceria. The mantle is made by soaking a "stocking" in a solution of nitrates of thorium and cerium (approx. 99 : 1), drying, and, for use, igniting to burn the thread and convert the nitrates into oxid…

To cover. [Obs.] Wrie you in that mantle. Chaucer.