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Northern; pertaining to the north, or to the north wind; as, a boreal bird; a boreal blast. So from their own clear north in radiant streams, Bright over Europe bursts the boreal morn. Thomson.

Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals. Woodpeckers are eminently arboreal. Darwin.

The twin flower which grows in cold northern climates.

Of or pertaining to trees; arboreal.

Furnished with an arbor; lined with trees. "An arboreal walk." Pollok.

The aurora borealis or aurora australis (northern or southern lights). Aurora borealis (, i. e., northern daybreak; popularly called northern lights. A luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. This species of light usually appears in streams, ascending toward the zen…

t grows in cold and wet localities in the northern part of the United States. The Calypso borealis is the only orchid which reaches 68º N.

A peculiar phase of the aurora borealis, formed by the concentration or convergence of luminous beams around the point in the heavens indicated by the direction of the dipping needle.

when they rise and fall alternately without any considerable change of length. See Aurora borealis, under Aurora.

The Eskimo curlew (Numenius borealis). See Curlew.

A small arboreal lizard of the genus Draco, of several species, found in the East Indies and Southern Asia. Five or six of the hind ribs, on each side, are prolonged and covered with weblike skin, forming a sort of wing. These prolongations aid them in making long leaps from tree to tree. Called also flying lizard.…

Any arboreal ape of the genus Hylobates, of which many species and varieties inhabit the East Indies and Southern Asia. They are tailless and without cheek pouches, and have very long arms, adapted for climbing.

A large, arboreal, anthropoid ape of West Africa. It is larger than a man, and is remarkable for its massive skeleton and powerful muscles, which give it enormous strength. In some respects its anatomy, more than that of any other ape, except the chimpanzee, resembles that of man.

ure, hay. Lolium perenne, var. Seneca grass, fragrant basket work, etc. North. Hierochloa borealis. Sesame grass. Same as Gama grass (above). Sheep's fescue, sheep pasture, native in Northern Europe and Asia. Festuca ovina. Small reed grass, meadow pasture and hay. North. Deyeuxia Canadensis. Spear grass, Same as Meado…

A species of fern (Lomaria borealis), growing in Europe and Northwestern America.

lete. -- Holy Grail. See Grail. -- Holy grass (Bot.), a sweet-scented grass (Hierochloa borealis and H. alpina). In the north of Europe it was formerly strewed before church doors on saints' days; whence the name. It is common in the northern and western parts of the United States. Called also vanilla, or Seneca, gra…

Any South American monkey of the genus Mycetes. Many species are known. They are arboreal in their habits, and are noted for the loud, discordant howling in which they indulge at night.

of the genus Iguana, a genus of large American lizards of the family Iguanidæ. They are arboreal in their habits, usually green in color, and feed chiefly upon fruits.

, somewhat angular rings, each generally inclosing one or two dark spots. It is chiefly arboreal in its habits. Called also the American tiger.

body and very short legs. Its color is grayish brown, varied with a blackish hue. It is arboreal in its habits and feeds mostly on birds.