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Having two principal ribs running longitudinally, as a leaf.

Having two legs. Hooker.

One of the two double-pointed teeth which intervene between the canines (cuspids) and the molars, on each side of each jaw. See Tooth, n.

Having two points or prominences; ending in two points; -- said of teeth, leaves, fruit, etc.

A light vehicle having two wheels one behind the other. It has a saddle seat and is propelled by the rider's feet acting on cranks or levers.

An instrument or weapon with two prongs.

Having two teeth. Swift.

Having two teeth or two toothlike processes; two-toothed.

Having two fingers or fingerlike projections.

Happening, or taking place, once in two years; as, a biennial election.

Once in two years.

Twofold; arranged in two rows.

Two-threaded; involving the use of two threads; as, bifilar suspension; a bifilar balance. Bifilar micrometer (often called a bifilar), an instrument form measuring minute distances or angles by means of two very minute threads (usually spider lines), one of which, at least, is movable; -- more commonly called a filar…

Having two long, narrow, whiplike appendages.

Bearing two flowers; two-flowered.

Having two foci, as some spectacle lenses.

Twofold; double; of two kinds, degrees, etc. Shak.

Having two leaves; two-leaved.

Having two leaflets, as some compound leaves.

Having two perforations.