Having no dinner; as, the naughty child was sent to bed dinnerless.

Of or pertaining to dinner.

the time when people eat dinner, usually the time for the evening meal.

A genus of large extinct Eocene mammals from Wyoming; -- called also Uintatherium. See Illustration in Appendix.

a small order of primitive ungulates of the Paleocene and Eocene.

and order of plankton, in some classifications it is considered a phylum of the kingdom Protista; in others it is included in the plant phylum Pyrrophyta. Its members usually have two flagella, one of which extends from its center.

a member of the Dinoflagellata, chiefly marine protozoa having two flagella. The dinoflagellates form a chief constituent of plankton.

A genus of extinct, ostrichlike birds of gigantic size, which formerly inhabited New Zealand. See Moa.

An order of extinct mesozoic reptiles, mostly of large size (whence the name). Notwithstanding their size, they present birdlike characters in the skeleton, esp. in the pelvis and hind limbs. Some walked on their three-toed hind feet, thus producing the large /bird tracks,/ so-called, of mesozoic sandstones; others were five-toed and quadrupedal. See Illust. of Compsognathus, also Illustration of Dinosaur in Appendix.

One of the Dinosauria.

A large extinct proboscidean mammal from the miocene beds of Europe and Asia. It is remarkable for a pair of tusks directed downward from the decurved apex of the lower jaw.

Same as Dioxide.

Full of din.

To make a mark or cavity on or in, by a blow or by pressure; to dent.

Enumeration.

A bishop, viewed in relation to his diocese; as, the diocesan of New York.

The circuit or extent of a bishop's jurisdiction; the district in which a bishop exercises his ecclesiastical authority.

One who belongs to a diocese.

A genus of spinose, plectognath fishes, having the teeth of each jaw united into a single beaklike plate. They are able to inflate the body by taking in air or water, and, hence, are called globefishes, swellfishes, etc. Called also porcupine fishes, and sea hedgehogs.

Like or pertaining to the genus Diodon. A fish of the genus Diodon, or an allied genus.

A Linn/an class of plants having the stamens and pistils on different plants.

Having the sexes in two separate individuals; -- applied to plants in which the female flowers occur on one individual and the male flowers on another of the same species, and to animals in which the ovum is produced by one individual and the sperm cell by another; -- opposed to mon/cious.

In a di/cious manner.

The state or quality of being di/cious.

The condition of being di/cious.

in a period of sexual inactivity; -- of animals that have several estrous cycles in one breeding season.

A Greek Cynic philosopher (412?-323 B. C.) who lived much in Athens and was distinguished for contempt of the common aims and conditions of life, and for sharp, caustic sayings.

See Di/cious.

A genus of large sea birds, including the albatross. See Albatross.

An insectivorous plant. See Venus's flytrap.

Any of the festivals held in honor of the Olympian god Dionysus. They correspond to the Roman Bacchanalia; the greater Dionysia were held at Athens in March or April, and were celebrated with elaborate performances of both tragedies and comedies.

Of or pertaining to Dionysus or to the Dionysia; Bacchic; as, a Dionysiac festival; the Dionysiac theater at Athens.

Relating to Dionysius, a monk of the 6th century; as, the Dionysian, or Christian, era.

Originated or taught by Diophantus, the Greek writer on algebra.

A crystallized variety of pyroxene, of a clear, grayish green color; mussite.

A hydrous silicate of copper, occurring in emerald-green crystals.

An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc.

A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.

Of or pertaining to the dioptre, or to the metric system of numbering glasses. A dioptre. See Dioptre.

Of or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a dioptric glass or telescope.

The science of the refraction of light; that part of geometrical optics which treats of the laws of the refraction of light in passing from one medium into another, or through different mediums, as air, water, or glass, and esp. through different lenses; -- distinguished from catoptrics, which refers to reflected light.

A dioptre.

A mode of scenic representation, invented by Daguerre and Bouton, in which a painting is seen from a distance through a large opening. By a combination of transparent and opaque painting, and of transmitted and reflected light, and by contrivances such as screens and shutters, much diversity of scenic effect is produced.

Pertaining to a diorama.

Definition; logical direction.

Distinguishing; distinctive; defining.

An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone.

Containing diorite.

Relating to the correcting or straightening out of something; corrective.

A genus of plants, the roots of which are eaten as yams. See Yam.

a natural family of tuberous plants including the yams.

A vase or drinking cup having two handles or ears.

An oxide containing two atoms of oxygen in each molecule; binoxide. An oxide containing but one atom or equivalent of oxygen to two of a metal; a suboxide.

A white, crystalline, nitrogenous substance obtained by the reduction of isatin. It is a member of the indol series; -- hence its name.

The action of dipping or plunging for a moment into a liquid.

Including two passovers.

See Dabchick.

Having two petals; two-petaled.

A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united.

A very dangerous contagious disease in which the air passages, and especially the throat, become coated with a false membrane, produced by the solidification of an inflammatory exudation. Cf. Group.

Pertaining to, or connected with, diphtheria.

To form or pronounce as a diphthong; diphthongize.

Relating or belonging to a diphthong; having the nature of a diphthong.

To make into a diphthong; to pronounce as a diphthong.

See Diphthongization.

Of the nature of diphthong; diphthongal.

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.