What is "brook trout"

Rainbow \Rain"bow`\ (r[=a]n"b[=o]`), n. [AS. regenboga, akin to G. regenbogen. See Rain, and Bow anything bent.] A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.

Note: Besides the ordinary bow, called also primary rainbow, which is formed by two refractions and one reflection, there is also another often seen exterior to it, called the secondary rainbow, concentric with the first, and separated from it by a small interval. It is formed by two refractions and two reflections, is much fainter than the primary bow, and has its colors arranged in the reverse order from those of the latter.

Lunar rainbow, a fainter arch or rainbow, formed by the moon.

Marine rainbow, Sea bow, a similar bow seen in the spray of waves at sea.

Rainbow trout (Zo["o]l.), a bright-colored trout ( Salmo irideus), native of the mountains of California, but now extensively introduced into the Eastern States, Japan, and other countries; -- called also brook trout, mountain trout, and golden trout.

Rainbow wrasse. (Zo["o]l.) See under Wrasse.

Supernumerary rainbow, a smaller bow, usually of red and green colors only, sometimes seen within the primary or without the secondary rainbow, and in contact with them.

n. 1 (context British English) A fish of the subspecies (taxlink Salmo trutta fario subspecies noshow=1), the brown trout. 2 A fish of the species ''Salvelinus fontinalis''.

1. n. freshwater fish [syn: speckled trout]

2. North American freshwater trout; introduced in Europe [syn: speckled trout, Salvelinus fontinalis]

The brook trout (Salvelinus fontinalis) is a species of freshwater fish in the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere in North America and to other continents. In parts of its range, it is also known as the eastern brook trout, speckled trout, brook charr, squaretail, or mud trout, among others. A potamodromous population in Lake Superior is known as coaster trout or, simply, as coasters. The brook trout is the state fish of nine states: Michigan, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Vermont, Virginia, and West Virginia, and the Provincial Fish of Nova Scotia in Canada.