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Diaphaneity

The quality of being diaphanous; transparency; pellucidness.

Diaphanic

Having power to transmit light; transparent; diaphanous.

Diaphanie

The art of imitating stained glass with translucent paper.

Diaphanometer

An instrument for measuring the transparency of the air.

Diaphanoscope

A dark box constructed for viewing transparent pictures, with or without a lens.

Diaphanotype

A colored photograph produced by superimposing a translucent colored positive over a strong uncolored one.

Diaphanous

Allowing light to pass through, as porcelain; translucent or transparent; pellucid; clear.

Diaphemetric

Relating to the measurement of the tactile sensibility of parts; as, diaphemetric compasses.

Diaphonics

The doctrine of refracted sound; diacoustics.

Diaphoresis

Perspiration, or an increase of perspiration.

Diaphoretic

A medicine or agent which promotes perspiration.

Diaphote

An instrument designed for transmitting pictures by telegraph.

Diaphragm

A dividing membrane or thin partition, commonly with an opening through it.

Diaphragmatic

Pertaining to a diaphragm; as, diaphragmatic respiration; the diaphragmatic arteries and nerves.

Diaphysis

An abnormal prolongation of the axis of inflorescence.

Diapnoic

Slightly increasing an insensible perspiration; mildly diaphoretic. A gentle diaphoretic.

Diapophysis

The dorsal transverse, or tubercular, process of a vertebra. See Vertebra.

Diarchy

A form of government in which the supreme power is vested in two persons.

Diarrhoea Diarrhea

A morbidly frequent and profuse discharge of loose or fluid evacuations from the intestines, without tenesmus; a purging or looseness of the bowels; a flux.

Diarthrodial

Relating to diarthrosis, or movable articulations.

Diarthrosis

A form of articulation which admits of considerable motion; a complete joint; abarticulation. See Articulation.

Diary

lasting for one day; as, a diary fever.

Diaspora

Lit., /Dispersion./ -- applied collectively: (a) To those Jews who, after the Exile, were scattered through the Old World, and afterwards to Jewish Christians living among heathen. Cf. James i. 1. (b) By extension, to Christians isolated from their own communion, as among the Moravians to those living, usually as missionaries, outside of the parent congregation.

Diaspore

A hydrate of alumina, often occurring in white lamellar masses with brilliant pearly luster; -- so named on account of its decrepitating when heated before the blowpipe.

Diastase

A soluble enzyme, capable of converting starch and dextrin into sugar.

Diastasic

Pertaining to, or consisting of, diastase; as, diastasic ferment.

Diastasis

A forcible separation of bones without fracture.

Diastatic

Relating to diastase; having the properties of diastase; effecting the conversion of starch into sugar.

Diastem

Intervening space; interval. An interval.

Diastema

A vacant space, or gap, esp. between teeth in a jaw.

Diaster

A double star; -- applied to the nucleus of a cell, when, during cell division, the loops of the nuclear network separate into two groups, preparatory to the formation of two daughter nuclei. See Karyokinesis.

Diastole

The rhythmical expansion or dilatation of the heart and arteries; -- correlative to systole, or contraction.

Diathermanism

The doctrine or the phenomena of the transmission of radiant heat.

Diathermanous

Having the property of transmitting radiant heat; diathermal; -- opposed to athermanous.

Diathermic

Affording a free passage to heat; as, diathermic substances.

Diathermometer

An instrument for examining the thermal resistance or heat-conducting power of liquids.

Diathesis

Bodily condition or constitution, esp. a morbid habit which predisposes to a particular disease, or class of diseases.

Diathetic

Pertaining to, or dependent on, a diathesis or special constitution of the body; as, diathetic disease.

Diatom

One of the Diatomace/, a family of minute unicellular Alg/ having a siliceous covering of great delicacy, each individual multiplying by spontaneous division. By some authors diatoms are called Bacillari/, but this word is not in general use.

diatomaceous

consisting of or containing diatoms or their fossils; as, diatomaceous earth (used as a component of dynamite).

diatomic

Containing two atoms. Having two replaceable atoms or radicals.

Diatomophyceae

a class of marine and freshwater eukaryotic algae comprising the diatoms.

Diatomous

Having a single, distinct, diagonal cleavage; -- said of crystals.

Diatonic

Pertaining to the scale of eight tones, the eighth of which is the octave of the first.

Diatribe

A prolonged or exhaustive discussion; especially, an acrimonious or invective harangue; a strain of abusive or railing language; a philippic.

Diatryma

An extinct eocene bird from New Mexico, larger than the ostrich.

Diazeutic Diazeuctic

Disjoining two fourths; as, the diazeutic tone, which, like that from F to G in modern music, lay between two fourths, and, being joined to either, made a fifth.

Diazotize

To subject to such reactions or processes that diazo compounds, or their derivatives, shall be produced by chemical exchange or substitution.

Dib

One of the small bones in the knee joints of sheep uniting the bones above and below the joints.

Dibasic

Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. Diacid, Bibasic.

Dibasicity

The property or condition of being dibasic.

Dibble

To plant with a dibble; to make holes in (soil) with a dibble, for planting.

Dibbler

One who, or that which, dibbles, or makes holes in the ground for seed.

dibrach

a foot of two short (unstressed-unstressed) syllables.

dibranch

a cephalopod having two gills; a member of the Dibranchiata.

Dibranchia

comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish).

Dibranchiata

An order of cephalopods which includes those with two gills, an apparatus for emitting an inky fluid, and either eight or ten cephalic arms bearing suckers or hooks, as the octopi and squids. See Cephalopoda.

dibs

A sweet preparation or treacle of grape juice, much used in the East.

dibstone

A pebble used in a child's game called dibstones.

dibutyl

A liquid hydrocarbon, C8H18, of the alkane series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane.

dicalcic

Having two atoms or equivalents of calcium to the molecule.

dicarbonic

Containing two carbon residues, or two carboxyl groups or radicals; as, oxalic acid is the simplest dicarbonic acid. In the latter sense, synonymous with dicarboxylic; as, succinic acid is a dicarboxylic acid.

dicast

A functionary in ancient Athens resembling closely to the modern juryman.

dice

To cut into small cubes; as, to slice and dice carrots.

dicebox

A box from which dice are thrown in gaming.

Dicentra

A genus of herbaceous plants, with racemes of two-spurred or heart-shaped flowers, including the Dutchman's breeches, and the more showy Bleeding heart (Dicentra spectabilis).

dicephalous

Having two heads on one body; double-headed.

Dicer

A player at dice; a dice player; a gamester.

Dichastic

Capable of subdividing spontaneously.

Dichogamy

The condition of certain species of plants, in which the stamens and pistil do not mature simultaneously, so that these plants can never fertilize themselves.

Dichotomize

To separate into two parts; to branch dichotomously; to become dichotomous.

Dichotomous

Regularly dividing by pairs from bottom to top; as, a dichotomous stem.

Dichroic

Having the property of dichroism; as, a dichroic crystal.

Dichroism

The property of presenting different colors by transmitted light, when viewed in two different directions, the colors being unlike in the direction of unlike or unequal axes.

Dichroite

Iolite; -- so called from its presenting two different colors when viewed in two different directions. See Iolite.

Dichromate

A salt of chromic acid containing two equivalents of the acid radical to one of the base; -- called also bichromate.

Dichromic

Furnishing or giving two colors; -- said of defective vision, in which all the compound colors are resolvable into two elements instead of three.

Dichroscope

An instrument for examining the dichroism of crystals.

Dichroscopic

Pertaining to the dichroscope, or to observations with it.

Dicing

An ornamenting in squares or cubes.

Dickcissel

The American black-throated bunting (Spiza Americana).

Dicker

To negotiate a dicker; to barter.

dickie

A small 3rd seat in the back of an old-fashioned 2-seat car.

dickie-seat

A small 3rd seat in the back of an old-fashioned 2-seat car.

Dicksonia

A genus of tree ferns of temperate Australasia having bipinnatifid or tripinnatifid fronds and usually marginal sori; in some classification systems it is placed in the family Cyatheaceae.

Dicksoniaceae

A family of plants comprising the tree ferns; it includes the genera Dicksonia; Cibotium; Culcita; and Thyrsopteris.

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