The act of changing into a diphthong.

To change into a diphthong, as by affixing another vowel to a simple vowel.

Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal.

Having two modes of embryonic development.

Having two leaves, as a calyx, etc.

Having two successive sets of teeth (deciduous and permanent), one succeeding the other; as, a diphyodont mammal; diphyodont dentition; -- opposed to monophyodont. An animal having two successive sets of teeth.

One of the free-swimming sexual zooids of Siphonophora.

Of or pertaining to two planes.

An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian.

Pertaining to the sending of two messages in the same direction at the same time. Diplex and contraplex are the two varieties of duplex.

Characterizing the ovum when it has two primary germinal layers.

Having the heart completely divided or double, one side systemic, the other pulmonary.

A form of micrococcus in which cocci are united in a binary manner. See Micrococcus.

The soft, spongy, or cancellated substance between the plates of the skull.

Diploic.

Partaking of the nature of two bodies; producing two substances.

An instrument used for double writing, as one for producing embossed writing for the blind and ordinary writing at the same time.

Of or pertaining to the diplo/.

having a number of chromosomes corresponding to two copies of each chromosome; having double the basic number of chromosomes, as seen in a haploid cell. Contrasted to haploid and polyploid.

A letter or writing, usually under seal, conferring some privilege, honor, or power; a document bearing record of a degree conferred by a literary society or educational institution.

The art and practice of conducting negotiations between nations (particularly in securing treaties), including the methods and forms usually employed.

To invest with a title or privilege by diploma.

A diplomatist.

Diplomatic.

A minister, official agent, or envoy to a foreign court; a diplomatist.

Pertaining to diplomacy; relating to the foreign ministers at a court, who are called the diplomatic body.

According to the rules of diplomacy; in the manner of a diplomatist; artfully.

The science of diplomas, or the art of deciphering ancient writings, and determining their age, authenticity, etc.; paleography.

Diplomacy.

A person employed in, or skilled in, diplomacy; a diplomat.

One of the Diplopoda.

An order of myriapods having two pairs of legs on each segment; the Chilognatha.

The act or state of seeing double.

Having twice as many stamens as petals, as the geranium.

The condition of being diplostemonous.

the fourth stage of the prophase of meiosis, when the paired chromosomes being to separate. This stage follows the pachytene.

A group of spiders having only two lunglike organs.

A group of ganoid fishes, including the living genera Ceratodus and Lepidosiren, which present the closest approximation to the Amphibia. The air bladder acts as a lung, and the nostrils open inside the mouth. See Ceratodus, and Illustration in Appendix.

a genus of rodents of the family Heteromyidae, comprising the genus of kangaroo rats which live in arid regions of Mexico and the western U. S.

Two metrical feet taken together, or included in one measure.

a genus of plants consisting of one species, the Australian pea.

Having two poles, as a magnetic bar.

having an abnormal sagging of the spine, especially in horses.

One who, or that which, dips; especially, a vessel used to dip water or other liquid; a ladle.

The act or process of immersing.

Doubly prismatic.

A pungent, mobile, volatile liquid, C6H6, produced artificially from certain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl.

One of the hexane paraffins, found in petroleum, consisting of two propyl radicals. See Hexane.

An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix.

A serpent whose bite was fabled to produce intense thirst.

Tending to produce thirst.

A morbid an uncontrollable craving (often periodic) for drink, esp. for alcoholic liquors; also improperly used to denote acute and chronic alcoholism.

One who has an irrepressible desire for alcoholic drinks.

Of or pertaining to dipsomania.

Excessive thirst produced by disease.

a graduated rod dipped into a container to indicate the fluid level; as, to check the oil level in a car with a dipstick.

A sinker attached to a fishing line; also, a line having several branches, each with such a sinker, used in deep-sea fishing.

An extensive order of insects having only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxill/) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larv/ (called maggots) being usually without feet.

Having two wings only; belonging to the order Diptera.

An insect of the order Diptera.

Having two wings, as certain insects; belonging to the order Diptera.

Having two dorsal fins; -- said of certain fishes.

a genus of tropical American trees which produce a black seed called the tonka bean.

A noun which has only two cases.

Anything consisting of two leaves. A writing tablet consisting of two leaves of rigid material connected by hinges and shutting together so as to protect the writing within. A picture or series of pictures painted on two tablets connected by hinges. See Triptych.

A mineral of the scapolite group; -- so called from the double effect of fire upon it, in fusing it, and rendering it phosphorescent.

Containing two stones or nutlets.

A polymeric form of pyridine, C10H10N2, obtained as a colorless oil by the action of sodium on pyridine.

A crystalline nitrogenous base, C10H8N2, obtained by the reduction of pyridine.

The emission and diffusion of rays of light.

Ill-boding; portentous; as, dire omens.

A character, thus [/], placed at the end of a staff on the line or space of the first note of the next staff, to apprise the performer of its situation.

Acting directly, as one part upon another, without the intervention of other working parts.

Coupled without intermediate connections, as an engine and a dynamo.

having a specified direction; often used in combination; as, goal-directed.

One who directs; a director.

The act of directing, of aiming, regulating, guiding, or ordering; guidance; management; superintendence; administration; as, the direction o/ public affairs or of a bank.

of or pertaining to direction (definition 2).

the property of a microphone or antenna of being more sensitive to signal arriving from one direction than from another.

purposeless. Opposite of purposeful.

Having power to direct; tending to direct, guide, or govern; showing the way.

the property of a microphone or antenna of being more sensitive to sounds coming from one direction than from another.

In a direct manner; in a straight line or course.

The quality of being direct; straightness; straightforwardness; immediateness.

One who, or that which, directs; one who regulates, guides, or orders; a manager or superintendent.

The office of director; also, a body of directors taken jointly.

Having the quality of a director, or authoritative guide; directive.

The condition or office of a director; directorate.

A collection or body of directions, rules, or ordinances; esp., a book of directions for the conduct of worship; as, the Directory used by the nonconformists instead of the Prayer Book.

A woman who directs.

A directress.

Dire; dreadful; terrible; calamitous; woeful; as, a direful fiend; a direful day.

In a dire manner.

To separate by force; to tear apart.

A tearing apart; violent separation.

Terribleness; horror; woefulness.

The act of plundering, despoiling, or snatching away.

Characterized by direption.

With plundering violence; by violent injustice.

A piece of music of a mournful character, to accompany funeral rites; a funeral hymn.

Funereal; moaning.

A service for the dead, in the Roman Catholic Church, being the first antiphon of Matins for the dead, of which Dirige is the first word; a dirge.

The line of motion along which a describent line or surface is carried in the genesis of any plane or solid figure; a directrix.

Capable of being directed; steerable; as, a dirigible balloon.

The practice or inclination to direct (activities) by a central authority; as, the linguistic dirigisme of prescriptivists clashes with the modern tendency toward acceptance of multiculturalism. See also dirigiste.

Directed by a central authority; as, a dirigiste economy; with respect to economics, opposed to free-market. See also dirigisme.

Absolute.

To darken.

Darkness.

To thrill; to vibrate; to penetrate.

To make foul of filthy; to dirty.

costing much less than standard price; as, the store went out of business and sold their remaining stock for dirt-cheap prices.

In a dirty manner; foully; nastily; filthily; meanly; sordidly.

The state of being dirty; filthiness; foulness; nastiness; baseness; sordidness.

To foul; to make filthy; to soil; as, to dirty the clothes or hands.

the act of soiling something.

Disruption.

The god Pluto, god of the underworld; also called Dis Pater.

to treat in a disrespectful manner; to insult, disparage or belittle.

any orchid of the genus Disa, a genus of beautiful orchids with dark green leaves and usually hooded flowers; -- they are much prized as emblematic flowers in their native regions.