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Subaqueous. [Obs.]

Being under water, or beneath the surface of water; adapted for use under water; submarine; as, a subaqueous helmet.

A Central American name for the ivory nut.

A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.

Any of numerous neuropterous insects of the genus Sialis or allied genera. They have aquatic larvæ, which are used for bait.

A division of insects having aquatic larvæ.

A South American aquatic bird; the horned screamer or kamichi (Palamedea cornuta). See Kamichi.

An aquatic bird of the southern United States (Platus anhinga); the darter, or snakebird.

A Linnæan order of aquatic birds swimming by means of webbed feet, as the duck, or of lobed feet, as the grebe. In this order were included the geese, ducks, auks, divers, gulls, petrels, etc.

lination or propensity in animals to perform certain actions, as in the young to suck, in aquatic fowls to enter into water and to swim; the tendency of an organized body to seek what satisfies the wants of its organism. These lacteals have mouths, and by animal selection or appetency the absorb such part of the fluid…

An aquatic plant of the genus Sagittaria, esp. S. sagittifolia, -- named from the shape of the leaves.

A plant (Subularia aquatica), with awl-shaped leaves.

h, a heavy felted woolen cloth, used chiefly for making overcoats. Beaver rat (Zoöl.), an aquatic ratlike quadruped of Tasmania (Hydromys chrysogaster). -- Beaver skin, the furry skin of the beaver. -- Bank beaver. See under 1st Bank.

or is extracted, much prized as a perfume. Also, the fruit. (b) A variety of mint (Mentha aquatica, var. glabrata).

also yellow, pink, and white. It is a silicate of aluminium and glucinum (beryllium). The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep color, which is probably due to the presence of a little oxide of chromium.…

A genus (Utricularia) of aquatic or marshy plants, which usually bear numerous vesicles in the divisions of the leaves. These serve as traps for minute animals. See Ascidium.

An aquatic hemipterous insect of the genus Notonecta; -- so called from swimming on its back, which gives it the appearance of a little boat. Called also boat fly, boat insect, boatman, and water boatman.

A small West African chevrotain (Hyæmoschus aquaticus), resembling the musk deer.

A gill; a respiratory organ for breathing the air contained in water, such as many aquatic and semiaquatic animals have.

human; esp. a quadruped; a beast. Brutes may be considered as either aëral, terrestrial, aquatic, or amphibious. Locke.