n. [ Gr. &unr_; thunder + -graph. ] (Meteor.) (a) A tracing or chart showing the phenomena attendant on thunderstorms. (b) An instrument for making such tracings, as a recording brontometer. [ Webster 1913 Suppl. ]

{ } n. [ Gr. &unr_; + -lite, -lith. ] An aërolite. [ R. ] [ 1913 Webster ]

n. [ Gr. &unr_; thunder + -logy. ] A treatise upon thunder. [ 1913 Webster ]

n. [ Gr. &unr_; thunder + -meter. ] (Meteor.) An instrument for noting or recording phenomena attendant on thunderstorms. [ Webster 1913 Suppl. ]

n. [ NL., fr. Gr. bronth` thunder + say^ros lizard. ] (Paleon.) a dinosaur of the genus Brontosaurus; an individual may also be called a brontosaurus or an apatosaurus. [ PJC ]

‖n. [ NL., fr. Gr. bronth` thunder + say^ros lizard. ] (Paleon.) A genus of large sauropod American dinosaurs of the jurassic era, or an individual of that genus. A length of sixty feet is believed to have been attained by these reptiles. The genus is also called Apatosaurus, and individuals of the genus are also called brontosaurs. [ 1913 Webster +PJC ]

‖n. [ NL., fr. Gr. &unr_; thunder + &unr_; beast. ] (Paleon.) A genus of large extinct mammals from the miocene strata of western North America. They were allied to the rhinoceros, but the skull bears a pair of powerful horn cores in front of the orbits, and the fore feet were four-toed. See Illustration in Appendix. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_; thunder + &unr_; animal. ] (Paleon.) An extinct animal of large size, known from its three-toed footprints in Mesozoic sandstone. [ 1913 Webster ]

☞ The tracks made by these reptiles are found eighteen inches in length, and were formerly referred to gigantic birds; but the discovery of large bipedal three-toed dinosaurs has suggested that they were made by those reptiles. [ 1913 Webster ]

n. an extinct order of primitive vertebrates; the precise taxonomy is not clear; in some classifications it is considered a separate phylum.
Syn. -- order Conodonta, Conodontophorida, order Conodontophorida. [ WordNet 1.5 ]

n. a genus of birds comprised of pewees, and including the wood pewees Contopus sordidulus and Contopus virens.
Syn. -- genus Contopus. [ WordNet 1.5 ]

{ ‖, n., [ It. contorniato, p. pr. of contorniare to make a circuit or outline, fr. contorno circuit, outline. See Contour. ] (Numis.) A species of medal or medallion of bronze, having a deep furrow on the contour or edge; -- supposed to have been struck in the days of Constantine and his successors. R. S. Poole. [ 1913 Webster ]

n. See Contortion. [ 1913 Webster ]

v. t. [ L. contortus, p. p. of contorquere to twist; con- + torquere to twist. See Torture. ] To twist, or twist together; to turn awry; to bend; to distort; to wrest. [ 1913 Webster ]

The vertebral arteries are variously contorted. Ray. [ 1913 Webster ]

Kant contorted the term category from the proper meaning of attributed. Sir W. Hamilton. [ 1913 Webster ]

a. 1. Twisted, or twisted together. “A contorted chain of icicles.” Massinger. [ 1913 Webster ]

2. (Bot.) (a) Twisted back upon itself, as some parts of plants. (b) Arranged so as to overlap each other; as, petals in contorted or convolute æstivation. [ 1913 Webster ]

n. [ L. contortio: cf. F. contorsion. See Contort, and cf. Torsion. ] A twisting; a writhing; wry motion; a twist; as, the contortion of the muscles of the face. Swift. [ 1913 Webster ]

All the contortions of the sibyl, without the inspiration. Burke. [ 1913 Webster ]

n. One who makes or practices contortions; especially, a gymnast who is able to twist the limbs into positions impossible for normal people to achieve. [ 1913 Webster +PJC ]

a. Expressing contortion. [ 1913 Webster ]

a. [ L. contortuplicatus; contortus contorted + plicare to fold. ] (Bot.) Plaited lengthwise and twisted in addition, as the bud of the morning-glory. Gray. [ 1913 Webster ]

n. [ F. contour, fr. contourner to mark the outlines; con- + tourner to turn. See Turn. ] 1. The outline of a figure or body, or the line or lines representing such an outline; the line that bounds; periphery. [ 1913 Webster ]

Titian's coloring and contours. A. Drummond. [ 1913 Webster ]

2. (Mil.) The outline of a horizontal section of the ground, or of works of fortification. [ 1913 Webster ]

Contour feathers (Zool.), those feathers that form the general covering of a bird. --
Contour of ground (Surv.), the outline of the surface of ground with respect to its undulation, etc. --
Contour line (Topographical Suv.), the line in which a horizontal plane intersects a portion of ground, or the corresponding line in a map or chart. [ 1913 Webster ]

‖a. [ F., p. p. of contourner to twist. ] (Her.) Turned in a direction which is not the usual one; -- said of an animal turned to the sinister which is usually turned to the dexter, or the like. [ 1913 Webster ]

a. [ Cf. Contorniate. ] (Numis.) Having furrowed edges, as if turned in a lathe. [ 1913 Webster ]

a. Pertaining to deontology. [ 1913 Webster ]

n. One versed in deontology. [ 1913 Webster ]

n. [ Gr. &unr_; gen. &unr_;, necessity, obligation (p. neut. of &unr_; it is necessary) + -logy. ] The science which relates to duty or moral obligation. J. Bentham. [ 1913 Webster ]

[ L. frons, frontis, the forehead. ] (Anat.) A combining form signifying relating to the forehead or the frontal bone; as, fronto-parietal, relating to the frontal and the parietal bones; fronto-nasal, etc. [ 1913 Webster ]

‖n. [ F., a pediment. See Front. ] (Arch.) Same as Frontal, 2. [ 1913 Webster ]

n. [ Gr. &unr_;, &unr_;, an old man + &unr_; to rule. ] Government by old men. [ R. ] Gladstone. [ 1913 Webster ]

prop. n. A genus of marmosets including some of the tamarins. Called also Leontopithecus and Leontideus.
Syn. -- genus Leontocebus, genus Leontideus, genus Leontopithecus. [ WordNet 1.5 ]

n. [ Gr. le`wn, le`ontos, lion + 'odoy`s, 'odo`ntos, tooth. Cf. Lion's-tooth, Dandelion. ] (Bot.) A genus of liguliflorous composite plants, including the fall dandelion (Leontodon autumnale), and formerly the true dandelion; -- called also lion's tooth. [ 1913 Webster ]

n. A genus of plants including the edelweiss (Leontopodium alpinum).
Syn. -- genus Leontopodium. [ WordNet 1.5 ]

‖n. [ F., fr. monter to mount. See Montant. ] A stone used in mounting a horse; a horse block. [ 1913 Webster ]

n. [ Sp. ] (Mining) A heap of ore; a mass undergoing the process of amalgamation. [ 1913 Webster ]

a. Not toxic. [ 1913 Webster ]

A combining form from Gr. 'odoy`s, 'odo`ntos, a tooth. [ 1913 Webster ]

n. [ Odonto- + -blast. ] [ 1913 Webster ]

1. (Anat.) One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine. [ 1913 Webster ]

2. (Zool.) One of the cells which secrete the chitinous teeth of Mollusca. [ 1913 Webster ]

‖n. pl. [ NL., from Gr. 'odoy`s, 'odo`ntos, a tooth + kh^tos a whale. ] (Zool.) A subdivision of Cetacea, including the sperm whale, dolphins, etc.; the toothed whales. [ 1913 Webster ]

n. [ Odonto- + root of Gr. gi`gnesqai to be born: cf: F. odontogénie. ] (Physiol.) Generation, or mode of development, of the teeth. [ 1913 Webster ]

n. [ Odonto- + -graph. ] An instrument for marking or laying off the outlines of teeth of gear wheels. [ 1913 Webster ]

a. Of or pertaining to odontography. [ 1913 Webster ]

n. A description of the teeth. [ 1913 Webster ]

a. [ Gr. &unr_;; 'odoy`s, 'odo`ntos, a tooth + e'i^dos form: cf. F. odontoïde. ] (Anat.) (a) Having the form of a tooth; toothlike. (b) Of or pertaining to the odontoid bone or to the odontoid process. [ 1913 Webster ]

Odontoid bone (Anat.), a separate bone, in many reptiles, corresponding to the odontoid process. --
Odontoid process, or
Odontoid peg (Anat.), the anterior process of the centrum of the second vertebra, or axis, in birds and mammals. See Axis. [ 1913 Webster ]

‖prop. n. pl. [ NL., from Gr. 'odoy`s, 'odo`ntos, a tooth + &unr_; a furrow. ] (Paleon.) An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis. [ Written also Odontholcae, and Odontoholcae. ] [ 1913 Webster ]

n. [ Odonto- + -lite. ] (Min.) A fossil tooth colored a bright blue by phosphate of iron. It is used as an imitation of turquoise, and hence called bone turquoise. [ 1913 Webster ]

n. [ Odonto- + -logy: cf. F. odontologie. ] The science which treats of the teeth, their structure and development. [ 1913 Webster ]

‖n. pl. [ NL. See Odontophore. ] (Zool.) Same as Cephalophora. [ 1913 Webster ]

n. [ Odonto- + Gr. fe`rein to bear. ] (Zool.) A special structure found in the mouth of most mollusks, except bivalves. It consists of several muscles and a cartilage which supports a chitinous radula, or lingual ribbon, armed with teeth. Also applied to the radula alone. See Radula. [ 1913 Webster ]

a. (Zool.) Having an odontophore. [ 1913 Webster ]

n. [ Odonto- + Gr. pla`ssein to form, mold. ] (Anat.) An odontoblast. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'odoy`s, 'odo`ntos, a tooth + pte`ryx a wing. ] (Paleon.) An extinct Eocene bird having the jaws strongly serrated, or dentated, but destitute of true teeth. It was found near London. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. 'odoy`s, 'odo`ntos, a tooth + &unr_;, &unr_;, a bird. ] (Paleon.) A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcae, Odontotormae, and Saururae. [ 1913 Webster ]