(Geol.) A period in the American eocene, the lowest in the tertiary age except the lignitic. [ 1913 Webster ]

a. (Med.) Efficacious in curing toothache. -- n. A remedy for toothache. [ 1913 Webster ]

n. (Med.) A remedy possessing the property of preventing the return of periodic paroxysms, or exacerbations, of disease, as in intermittent fevers. [ 1913 Webster ]

n. 1. placental mammal having hooves with an even number of functional toes on each foot; a member of the artiodactyla.
Syn. -- artiodactyle, even-toed ungulate, artiodactyl mammal [ WordNet 1.5 ]

adj. of, pertaining to, or belonging to the order Artiodactyla.
Syn. -- artiodactylous, even-toed. [ WordNet 1.5 ]

‖n. pl. [ NL., fr. Gr. &unr_; even + &unr_; finger or toe. ] (Zool.) One of the divisions of the ungulate animals. The functional toes of the hind foot are even in number, and the third digit of each foot (corresponding to the middle finger in man) is asymmetrical and paired with the fourth digit, as in the hog, the sheep, and the ox; -- opposed to Perissodactyla. [ 1913 Webster ]

n. (Zool.) One of the Artiodactyla.
Syn. -- artiodactyl, even-toed ungulate, artiodactyl mammal. [ 1913 Webster ]

a. (Zool.) Even-toed. [ 1913 Webster ]

n. Same as Diiodide. [ 1913 Webster ]

{ , a. } 1. (Biol.) Of or pertaining to biodynamics, or the doctrine of vital forces or energy. [ Webster 1913 Suppl. ]

2. of or pertaining to a method of farming that uses only organic fertilizers (rather than chemical fertilizers) and organic materials for improving the soil characteristics. [ PJC ]

n. [ Gr. bi`os life + E. dynamics. ] 1. (Biol.) The doctrine of vital forces or energy. [ archaic ] [ 1913 Webster ]

2. The branch of biology which treats of the active vital phenomena of organisms; -- opposed to biostatics. [ Webster 1913 Suppl. ]

n. [ Bromine + iodine + -ism. ] (Med.) Poisoning induced by large doses of bromine and iodine or of their compounds. [ Webster 1913 Suppl. ]

a. (Photog.) Treated with bromides and iodides. [ Webster 1913 Suppl. ]

(Geol.) The closing subdivision of the Devonian age in America. The rocks of this period are well developed in the Catskill mountains, and extend south and west under the Carboniferous formation. See the Diagram under Geology. [ 1913 Webster ]

(Geol.) A subdivision of the Quaternary age immediately following the Glacial period; -- so named from beds near Lake Champlain. [ 1913 Webster ]

☞ The earlier deposits of this period are diluvial in character, as if formed in connection with floods attending the melting of the glaciers, while the later deposits are of finer material in more quiet waters, as the alluvium. [ 1913 Webster ]

(Geol.) A subdivision in the upper part of the Devonian system in America, so named from the Chemung River, along which the rocks are well developed. It includes the Portage and Chemung groups or epochs. See the Diagram under Geology. [ 1913 Webster ]

a. Compounded of chlorine and iodine; containing chlorine and iodine. [ 1913 Webster ]

n. A compound of chlorine and iodine. [ R. ] [ 1913 Webster ]

n. an enzyme that removes the iodine radical. [ WordNet 1.5 ]

v. t. (chemistry) to remove iodine from. [ WordNet 1.5 ]

adj. removing iodine from. iodinating [ WordNet 1.5 ]

n. the removal of iodine atoms from organic compounds. [ WordNet 1.5 ]

n. [ Pref. di- + iodine. ] (Chem.) A compound of a binary type containing two atoms of iodine; -- called also biniodide. [ 1913 Webster ]

n. (Chem., Med.) a chemical substance consisting of tyrosine with two hydrogen atoms on the benzene ring replaced by iodine atoms. The isomer 3, 5-diiodotyrosine is an inhibitor of thyroid function. [ WordNet 1.5 ]

n. [ Gr. di- = di`s- twice + 'odoy`s, 'odo`ntos, a tooth: cf. F. diodon. ] 1. (Zool.) 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. [ 1913 Webster ]

2. (Zool.) A genus of whales. [ 1913 Webster ]

a. (Zool.) Like or pertaining to the genus Diodon. -- n. A fish of the genus Diodon, or an allied genus. [ 1913 Webster ]

a. [ Gr. &unr_; olive oil, oil + e'i^dos form. ] (Chem.) Derived from castor oil; ricinoleic; as, elaiodic acid. [ R. ] [ 1913 Webster ]

(Geol.) A subdivision of the Devonian system of America; -- so named from Hamilton, Madison Co., New York. It includes the Marcellus, Hamilton, and Genesee epochs or groups. See the Chart of Geology. [ 1913 Webster ]

n. [ Cf. F. hydriodate. ] (Zool.) Same as Hydriodide. [ 1913 Webster ]

a. [ Hydr- + iodic: cf. F. hydriodique. ] (Chem.) Pertaining to, or derived from, hydrogen and iodine; -- said of an acid (HI) produced by the combination of these elements. [ 1913 Webster ]

Hydriodic acid (Chem.), a pungent, colorless gas, HI, usually prepared as a solution in water. It is strong reducing agent. Called also hydrogen iodide. [ 1913 Webster ]

n. (Chem.) A compound of hydriodic acid with a base; -- distinguished from an iodide, in which only the iodine combines with the base.

(Chem.) See Iodo-. [ 1913 Webster ]

{ } (Chem.) A prefix, or combining from, indicating iodine as an ingredient; as, iodoform. [ 1913 Webster ]

n. [ Iod- + alcohol. ] (Chem.) An oily liquid, CI3.CHO, analogous to chloral and bromal. [ 1913 Webster ]

n. (Chem.) A salt of iodic acid. [ 1913 Webster ]

n. [ Iod- + chlorhydrin. ] (Chem.) One of a series of compounds containing iodine, and analogous to the chlorhydrins. [ 1913 Webster ]

a. [ Cf. F. iodique. See Iodine. ] (Chem.) Pertaining to, or containing, iodine; specif., denoting those compounds in which it has a relatively high valence; as, iodic acid. [ 1913 Webster ]

Iodic acid, a monobasic acid (HIO3), consisting of iodine with three parts of oxygen and one of hydrogen. [ 1913 Webster ]

n. (Chem.) A binary compound of iodine, or one which may be regarded as binary, in which iodine has a valence of -1; as, potassium iodide. [ 1913 Webster +PJC ]

v. (Chem.) to cause to combine with iodine; as, iodinate thyroxine.
Syn. -- . [ WordNet 1.5 ]

adj. (Chem.) treated or reacted with iodine; treated so as to combine with iodine. The iodinating agent may be other than iodine itself, such as compounds with active iodine.
Syn. -- iodized. [ PJC ]

adj. [ p. p. of verb iodinate ] (Chem.) combining or causing to combine with iodine; as, the active iodinating species; the in vivo iodinating mechanism. Inverse of de-iodinating. [ WordNet 1.5 ]

n. (Chem.) the substitution or addition of iodine atoms in organic compounds. [ WordNet 1.5 ]

n. [ Gr. 'iw`dhs violetlike; 'i`on a violet + e'i^dos form: cf. F. iode, iodine. The name was given from the violet color of its vapor. See Violet, Idyl. ] (Chem.) A nonmetallic element, of the halogen group of atomic number 53, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.90. If heated, iodine volatilizes in beautiful violet vapors. [ 1913 Webster ]

☞ Iodine was formerly obtained from the ashes of seaweed (kelp or varec), but is now also extracted from certain natural brines. In the free state, iodine, even in very minute quantities, colors starch blue. Iodine and its compounds are largely used in medicine (as in liniments, antisyphilitics, etc.), in photography, in the preparation of aniline dyes, and as an indicator in titration. [ 1913 Webster ]

Iodine green, an artificial green dyestuff, consisting of an iodine derivative of rosaniline; -- called also night green. --
Iodine scarlet, a pigment of an intense scarlet color, consisting of mercuric iodide. --
Iodine yellow, a brilliant yellow pigment, consisting of plumbic iodide. [ 1913 Webster ]

n. (Med.) A morbid state produced by the use of iodine and its compounds, and characterized by palpitation, depression, and general emaciation, with a pustular eruption upon the skin. [ 1913 Webster ]

v. t. [ imp. & p. p. Iodized p. pr. & vb. n. Iodizing ] To treat or impregnate with iodine or its compounds; as, to iodize a plate for photography. R. Hunt.

n. Table salt to which an inorganic iodide compound has been added as a nutritional supplement to prevent goiter. [ PJC ]

n. One who, or that which, iodizes.

n. (Chem.) a compound containing the covalent iodine radical. [ WordNet 1.5 ]

n. [ Iodo- + cresol. ] (Org. Chem.) Any of several isomeric iodine derivatives of the cresols, C6H3I(CH3)OH, esp. one, an odorless amorphous powder, used in medicine as a substitute for iodoform. [ Webster 1913 Suppl. ]

n. [ Iodo- + formyl. See Formyl, and cf. Chloroform. ] (Chem.) A yellow, crystalline, volatile substance, CI3H, having an offensive odor and sweetish taste, and analogous to chloroform. It is used in medicine as a healing and antiseptic dressing for wounds and sores. [ 1913 Webster ]