Search the Dictionary

A retrograde metamorphosis of the floral organs to the condition of leaves.

A foliar part of a plant; any organ homologous with a leaf, or produced by metamorphosis of a leaf.

opment of vital activities, in the individual, being one of the branches of ontogeny. See Morphogeny. Haeckel.

the paleontological development of vital activities, -- being a branch of phylogeny. See Morphophyly. Haeckel.

ean (the seed of Physostigma venenosum), and extracted as a white, tasteless, substance, amorphous or crystalline; -- formerly called eserine, with which it was regarded as identical.

An alkaloid extracted from jaborandi (Pilocarpus pennatifolius) as a white amorphous or crystalline substance which has a peculiar effect on the vasomotor system.

road of a gamopetalous corolla, while the stamens are concealed in the tube; -- said of dimorphous flowers. The opposite of Ant: thrum-eyed.

The metamorphosis of other organs into pistils.

A formative particle of albuminous matter; a monad; a cytode. See the Note under Morphon. Haeckel.

Polymorphous.

recipitate per se of the alchemists. -- White precipitate (Old Chem.) (a) A heavy white amorphous powder (NH2.HgCl) obtained by adding ammonia to a solution of mercuric chloride or corrosive sublimate; -- formerly called also infusible white precipitate, and now amido-mercuric chloride. (b) A white crystalline substan…

An amorphous nitrogenous substance found in the spermatic fluid of salmon. It is soluble in water, which an alkaline reaction, and unites with acids and metallic bases.

One of a class of amorphous nitrogenous principles, containing, as a rule, a small amount of sulphur; an albuminoid, as blood fibrin, casein of milk, etc. Proteids are present in nearly all animal fluids and make up the greater part of animal tissues and organs. They are also important constituents of vegetable tissues…

of several complex double cyanides of ferrous and ferric iron; specifically, a dark blue amorphous substance having a coppery luster, obtained by adding a solution of potassium ferrocyanide (yellow prussiate of potash) to a ferric salt. It is used in dyeing, in ink, etc. Called also Williamson's blue, insoluble Prussia…

A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution.

Any insect in that stage of its metamorphosis which usually immediately precedes the adult, or imago, stage.

Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock.

g to, or designating, a tannic acid found in oak bark and extracted as a yellowish brown amorphous substance.

An amorphous bitter glucoside derived from cinchona and other barks. Called also quinova bitter, and quinova. [Written also chinovin, and kinovin.]

ine and aurin. It is produced by oxidizing a mixture of phenol and cresol, as a dark red amorphous mass, C20H16O3, which forms weak salts with bases, and stable ones with acids. Called also methyl aurin, and, formerly, corallin.