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Sinapine :: Sinapine (n.) An alkaloid occuring in the seeds of mustard. It is extracted, in combination with sulphocyanic acid, as a white crystalline substance, having a hot, bitter taste. When sinapine is isolated it is unstable and undergoes decomposition..

Insecure :: Insecure (a.) Not effectually guarded, protected, or sustained; unsafe; unstable; exposed to danger or loss..

Mutable :: Mutable (a.) Changeable; inconstant; unsettled; unstable; fickle.

Nitroprussic :: Nitroprussic (a.) Pertaining to, derived from, or designating, a complex acid called nitroprussic acid, obtained indirectly by the action of nitric acid on potassium ferrocyanide (yellow prussiate), as a red crystalline unstable substance. It forms salts called nitroprussides, which give a rich purple color with alkaline subphides..

Hydroxylamine :: Hydroxylamine (n.) A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent..

Ticklish :: Ticklish (a.) Standing so as to be liable to totter and fall at the slightest touch; unfixed; easily affected; unstable.

Sodium :: Sodium (n.) A common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so readily oxidized that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid. Sodium is used combined in many salts, in the free state as a reducer, and as a means of obtaining other metals (as magnesium and aluminium) is an important commercial product. Symbol

Nitroglycerin :: Nitroglycerin (n.) A liquid appearing like a heavy oil, colorless or yellowish, and consisting of a mixture of several glycerin salts of nitric acid, and hence more properly called glycerin nitrate. It is made by the action of nitric acid on glycerin in the presence of sulphuric acid. It is extremely unstable and terribly explosive. A very dilute solution is used in medicine as a neurotic under the name of glonion..

Slippery :: Slippery (a.) Unstable; changeable; mutable; uncertain; inconstant; fickle.

Fickle :: Fickle (a.) Not fixed or firm; liable to change; unstable; of a changeable mind; not firm in opinion or purpose; inconstant; capricious; as, Fortune's fickle wheel..

Voluble :: Voluble (a.) Changeable; unstable; fickle.

Frothy :: Frothy (superl.) Not firm or solid; soft; unstable.

Sulphinide :: Sulphinic (a.) Of, pertaining to, or designating, any one of a series of acids regarded as acid ethereal salts of hyposulphurous acid; as, methyl sulphinic acid, CH3.SO.OH, a thick unstable liquid..

Wankle :: Wankle (a.) Not to be depended on; weak; unstable.

Thiosulphuric :: Thiosulphuric (a.) Of, pertaining to, or designating, an unstable acid, H2S2O3, analogous to sulphuric acid, and formerly called hyposulphurous acid..

Giddy :: Giddy (superl.) Characterized by inconstancy; unstable; changeable; fickle; wild; thoughtless; heedless.

Unstable :: Unstable (a.) Not stable; not firm, fixed, or constant; subject to change or overthrow..

Fast :: Fast (v.) Firmly fixed; closely adhering; made firm; not loose, unstable, or easily moved; immovable; as, to make fast the door..

Flitty :: Flitty (a.) Unstable; fluttering.

Pendulous :: Pendulous (a.) Wavering; unstable; doubtful.

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