Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Chemistry A substance that can be crystallized.
- n. Botany Any of various minute crystallike particles consisting of protein and found in certain plant cells, especially oily seeds.
- adj. Resembling or having properties of a crystal or crystalloid.
Century Dictionary and Cyclopedia
- Resembling a crystal.
- n. The name given by Professor Graham to a class of bodies which have the power, when in solution, of passing easily through membranes, as parchment-paper, and which he found to be of a crystalline character. Metallic salts and organic bodies, as sugar, morphia, and oxalic acid, are crystalloids. They are the opposite of
colloids , which have not this permeating power. Seecolloid . - n. A protein crystal—that is, a granule of protein in the form of crystal, differing from an organic crystal in the inconstancy of its angles and in its property of swelling when immersed in water. Such crystalloids are of various forms and usually colorless.
Wiktionary
- n. Any substance that can be crystallized from solution
- n. botany One of the microscopic particles resembling crystals, consisting of protein matter, which occur in certain plant cells.
GNU Webster's 1913
- adj. Crystal-like; transparent like crystal.
- n. (Chem.) A body which, in solution, diffuses readily through animal membranes, and generally is capable of being crystallized; -- opposed to
colloid . - n. (Bot.) One of the microscopic particles resembling crystals, consisting of protein matter, which occur in certain plant cells; -- called also
protein crystal .
Etymologies
- crystal + -oid (Wiktionary)
Examples
“What Kallatra did with Deuce's crystalloid resonators was a pallid approximation.”
“It was very soon found that sometimes one and the same substance can occur in one case as a crystalloid and in another case as a colloid.”
“A colloid, on the other hand, e.g. glue, is unable to pass through such membranes and diffuses extremely slowly, in contrast to the crystalloid.”
“A crystalloid, e.g. common salt, is characterized in that it passes in the dissolved state readily through membranes such as parchment paper or collodion films and also that it exhibits a rapid free diffusion.”
“The crystalloid substance, on the other hand, completely separates in the water and forms a _true solution_ — one which is able to penetrate the partition or membrane.”
“* — The passage of materials through animal membranes, according to the principle of osmosis, is limited to crystalloid substances.”
“Simple filtration will sometimes suffice to separate the required substance; in other cases dialysis will be necessary, in order that crystalloid substances may be separated from colloid bodies.”
“The philosophers call it crystalloid, for it taketh suddenly divers forms and shapes of colours as crystal doth.”
“Cavities can be partly filled with tin and completed with sponge, fibrous, or crystalloid gold, after the manner described for beginning with tin and finishing with gold foil.”
“That eminent chemist was the first who drew attention to the distinction which may be made of all substances into two classes, termed by him crystalloids and colloids; or rather, of all states of matter into the crystalloid and the colloidal states, for many substances are capable of existing in either.”
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