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hest rank; in the first division; of the best quality; first-rate; as, a first-class telescope. First- class car or First-class railway carriage, any passenger car of the highest regular class, and intended for passengers who pay the highest regular rate; -- distinguished from a second-class car.

nd, etc., forming the mold used in a foundry; it consists of two or more parts; viz., the cope or top; sometimes, the cheeks, or middle part; and the drag, or bottom part. When there are one or more cheeks, the flask is called a three part flask, four part flask, etc. Erlenmeyer flask, a thin glass flask, flat-bottomed…

more exactly, in the case of a lens, from its optical center. --Focal distance of a telescope, the distance of the image of an object from the object glass.

(In the field of a telescope) In the direction from which stars are apparently moving (in consequence of the erth's rotation); as, a small star, north following or south following. In the direction toward which stars appear to move is called preceding.

of innumerable stars, so distant and blended as to be distinguishable only with the telescope. The term has recently been used for remote clusters of stars. Nichol.

Of or pertaining to Galileo; as, the Galilean telescope. See Telescope.

Of or pertaining to a galvanoscope.

Examination of the abdomen or stomach, as with the gastroscope.

To bring under a genus or under genera; to view in relation to a genus or to genera. Copernicus generalized the celestial motions by merely referring them to the moon's motion. Newton generalized them still more by referring this last to the motion of a stone through the air. W. Nicholson.

A false image formed in a telescope by reflection from the surfaces of one or more lenses. Ghost moth (Zoöl.), a large European moth (Hepialus humuli); so called from the white color of the male, and the peculiar hovering flight; -- called also great swift. -- Holy Ghost, the Holy Spirit; the Paraclete; the Comforter;…

See Pothole. -- Giant powder. See Nitroglycerin. -- Giant puffball (Bot.), a fungus (Lycoperdon giganteum), edible when young, and when dried used for stanching wounds. -- Giant salamander (Zoöl.), a very large aquatic salamander (Megalobatrachus maximus), found in Japan. It is the largest of living Amphibia, becom…

lass globes. Many varieties are known. Called also golden fish, and golden carp. See Telescope fish, under Telescope.

eat, and named after the ancient Greek scales, as Dorian, Lydian, etc. -- Gregorian telescope (Opt.), a form of reflecting telescope, named from Prof. James Gregory, of Edinburgh, who perfected it in 1663. A small concave mirror in the axis of this telescope, having its focus coincident with that of the large reflecto…

water continually renewed, in a manner to permit its growth to be watched under the microscope. -- Grown over, covered with a growth. -- To grow out of, to issue from, as plants from the soil, or as a branch from the main stem; to result from. These wars have grown out of commercial considerations. A. Hamilton. -- To…

Pertaining to the gyroscope; resembling the motion of the gyroscope.

A modification of the gyroscope, consisting essentially of a fly wheel fixed inside a rigid case to which is attached a thin flange of metal for supporting the instrument. It is used in studying the dynamics of rotating bodies.

elation or resemblance to blood, association with blood; as, hæmapod, hæmatogenesis, hæmoscope.

of two stars too far apart to be easily measured in the field of view of an ordinary telescope.

Of or relating to Sir William Herschel; as, the Herschelian telescope.

The art or practice of casting horoscopes, or observing the disposition of the stars, with a view to prediction events.