Search the Dictionary

Pertaining to experiment; founded on, or derived from, experiment or trial; as, experimental science; given to, or skilled in, experiment; as, an experimental philosopher.

Skill derived from practice; readiness; as, expertness in seamanship, or in reasoning.

a quantity whose exponent is unknown or variable, as ax. -- Exponential series, a series derived from the development of exponential equations or quantities.

ily men." Mayhew. -- Family of curves or surfaces (Geom.), a group of curves or surfaces derived from a single equation. -- In a family way, like one belonging to the family. "Why don't we ask him and his ladies to come over in a family way, and dine with some other plain country gentlefolks" Thackeray. -- In the fa…

Pertaining to fever; indicating fever, or derived from it; as, febrile symptoms; febrile action. Dunglison.

Pertaining to a league or treaty; derived from an agreement or covenant between parties, especially between nations; constituted by a compact between parties, usually governments or their representatives. The Romans compelled them, contrary to all federal right, . . . to part with Sardinia. Grew.

Of, relating to, or derived from, bile or gall; as, fellinic acid.

Pertaining to, derived from, or containing iron. Specifically (Chem.), denoting those compounds in which iron has a higher valence than in the ferrous compounds; as, ferric oxide; ferric acid. Ferric acid (Chem.), an acid, H2FeO4, which is not known in the free state, but forms definite salts, analogous to the chromate…

Pertaining to, or derived from, a ferricyanide. Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc.

t, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue.

Pertaining to, derived from, or designating, a ferrocyanide. ferrocyanic acid (Chem.), a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; -- called also hydro- ferrocyanic acid, hydrogen ferrocyanide. etc.…

Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence; as, ferrous sulphate.

ndation; impregnation. Close fertilization (Bot.), the fertilization of pistils by pollen derived from the stamens of the same blossom. -- Cross fertilization, fertilization by pollen from some other blossom. See under Cross, a.

Pertaining to, or derived from, asafetida (Ferula asafoetida); as, ferulic acid. [Written also ferulaic.]

Pertaining to, or derived from, ferns; as, filicic acid.

Highly actinic light, derived from sunlight or from some form of electric lamp, used in the treatment of lupus and other cutaneous affections.

Pertaining to, derived from, or consisting of, fluorine and boron. Fluoridic acid (Chem.), a double fluoride, consisting essentially of a solution of boron fluoride, in hydrofluoric acid. It has strong acid properties, and is the type of the borofluorides. Called also borofluoric acid.

Composed of, or derived from, silicon and fluorine. Fluosilicic acid, a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; -- called also silicofluoric acid, and hydrofluosilicic acid.

To derive by grammatical rules, as by adding the proper suffixes and affixes.

Pertaining to, or derived from, ants; as, formic acid; in an extended sense, pertaining to, or derived from, formic acid; as, formic ether. Amido formic acid, carbamic acid. -- Formic acid, a colorless, mobile liquid, HCO.OH, of a sharp, acid taste, occurring naturally in ants, nettles, pine needles, etc., and produce…