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in tactics. Farrow. Guide bar (Mach.), the part of a steam engine on which the crosshead slides, and by which the motion of the piston rod is kept parallel to the cylinder, being a substitute for the parallel motion; -- called also guide, and slide bar. -- Guide block (Steam Engine), a block attached in to the crosshe…

A machine for beheading a person by one stroke of a heavy ax or blade, which slides in vertical guides, is raised by a cord, and let fall upon the neck of the victim.

for melting gum and mixing other ingredients. -- Gum resin, the milky juice of a plant solidified by exposure to air; one of certain inspissated saps, mixtures of, or having properties of, gum and resin; a resin containing more or less mucilaginous and gummy matter. -- Gum sandarac. See Sandarac. -- Gum Senegal, a g…

A topmast arranged with metal bands so that it will readily slide up and down the lower mast.

A group of transparent, free-swimming Annelida, having setae only in the cephalic appendages.

One of a group of plectognath fishes (Gymnodontes), having the teeth and jaws consolidated into one or two bony plates, on each jaw, as the diodonts and tetradonts. See Bur fish, Globefish, Diodon.

be reluctant. "If any one among you hangs back." Jowett (Thucyd.). -- To hang by the eyelids. (a) To hang by a very slight hold or tenure. (b) To be in an unfinished condition; to be left incomplete. -- To hang in doubt, to be in suspense. -- To hang on (with the emphasis on the preposition), to keep hold; to hold…

Not easily penetrated, cut, or separated into parts; not yielding to pressure; firm; solid; compact; -- applied to material bodies, and opposed to soft; as, hard wood; hard flesh; a hard apple.

To become hard or harder; to acquire solidity, or more compactness; as, mortar hardens by drying. The deliberate judgment of those who knew him [A. Lincoln] has hardened into tradition. The Century.

to a lachrymal gland on the inner side of the orbit of many animals which have a third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.

f calves. They afford a kind of jelly. Hebert. -- Salt of hartshorn (Chem.), an impure solid carbonate of ammonia, obtained by the destructive distillation of hartshorn, or any kind of bone; volatile salts. Brande & C.-- Spirits of hartshorn (Chem.), a solution of ammonia in water; -- so called because formerly obtain…

The third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.

; to cause to pass away; to cure; -- said of a disease or a wound. I will heal their backsliding. Hos. xiv. 4.

ltiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4. -- Dynamical theory of heat, that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter. Heat…

A white, semisolid, spermaceti-like hydrocarbon, C16H34, of the paraffin series, found dissolved as an important ingredient of kerosene, and so called because each molecule has sixteen atoms of carbon; -- called also hexadecane.

A measure of solidity, containing one hundred cubic meters, and equivalent to 3531.66 English or 3531.05 United States cubic feet.

The hinder part of any covering for the foot, as of a shoe, sock, etc.; specif., a solid part projecting downward from the hinder part of the sole of a boot or shoe.

which full symmetry would require, as when a cube has planes only on half of its eight solid angles, or one plane out of a pair on each of its edges; or as in the case of a tetrahedron, which is hemihedral to an octahedron, it being contained under four of the planes of an octahedron. -- Hem`i*he"dral*ly, adv.…

A solid hemihedrally derived. The tetrahedron is a hemihedron.

A solid figure with seven sides.