English English Dictionary

Having an eyelike spot on the wing, with two dots within it of a different color, as in some butterflies.

Consisting of two pyramids placed base to base; having a pyramid at each of the extremities of a prism, as in quartz crystals.

The fourth power, or the square of the square. Thus 4x4=16, the square of 4, and 16x16=256, the biquadrate of 4.

Of or pertaining to the biquadrate, or fourth power.

A biquadrate.

A biquadratic equation.

An aspect of the planets when they are distant from each other by twice the fifth part of a great circle -- that is, twice 72 degrees.

Alt. of Biradiated

Having two rays; as, a biradiate fin.

Having, or consisting of, two branches.

A birch twig or birch twigs, used for flogging.

To whip with a birch rod or twig; to flog.

Of or pertaining to the birch; birchen.

A birch-bark canoe.

The wood or timber of the birch.

A tree of several species, constituting the genus Betula; as, the white or common birch (B. alba) (also called silver birch and lady birch); the dwarf birch (B. glandulosa); the paper or canoe birch (B. papyracea); the yellow birch (B. lutea); the black or cherry birch (B. lenta).

of Birch

Of or relating to birch.

of Birch

of Birch