REDWING n.
also redwinged thrush. (b) A North American passerine bird (Agelarius phoeniceus) of the family Icteridæ. The male is black, with a conspicuous patch of bright red, bordered with orange, on each wing. Called also redwinged blackbird, red-winged troupial, marsh blackbird, and swamp blackbird.
RHINOCEROS n.
pachyderm belonging to the genera Rhinoceros, Atelodus, and several allied genera of the family Rhinocerotidæ, of which several living, and many extinct, species are known. They are large and powerful, and usually have either one or two stout conical median horns on the snout.
RO2 R2O5 RO3 R2O7 RO4 ----------------------------------------------- n.
f groups (under I., II., III., IV., etc.), each consisting of members of the same natural family. The gaps in the table indicate the probable existence of unknown elements. TABLE OF THE PERIODIC LAW OF THE CHEMICAL ELEMENTS (The vertical columns contain the periodic groups) Series1{ 2{ 3{ 4{ 5{ 6{ 7{ 8{ 9{ 10{ 11{ 12{…
ROCK n.
trout (Zoöl.), any one of several species of marine food fishes of the genus Hexagrammus, family Chiradæ, native of the North Pacific coasts; -- called also sea trout, boregat, bodieron, and starling. -- Rock warbler (Zoöl.), a small Australian singing bird (Origma rubricata) which frequents rocky ravines and water co…
RUDD n.
A fresh-water European fish of the Carp family (Leuciscus erythrophthalmus). It is about the size and shape of the roach, but it has the dorsal fin farther back, a stouter body, and red irises. Called also redeye, roud, finscale, and shallow. A blue variety is called azurine, or blue roach.