Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Hallstatt A village in Salzkammergut, Austria, known historically for the production of salt. Hallstattian Of or relating to the Hallstatt culture, often linked to Celtic, Proto-Celtic, and pre-Illyrian peoples in Early Iron Age Europe, c.800–450 BC. Hallston A locality in South Gippsland Shire, south eastern Victoria, Australia. Hallstrom A surname from Swedish. Hallsville A suburb of Tamworth, New South Wales, Australia. hallucal Of or pertaining to the hallux or big toe hallucinant A hallucinogen. hallucinate To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination. hallucinatingly in a hallucinating manner hallucination A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens. hallucinational Relating to hallucination. hallucinationy hallucinatory hallucinative Relating to hallucination; hallucinatory. hallucinator One whose judgment and acts are affected by hallucinations; one who errs on account of his hallucinations. hallucinatorily In a hallucinatory fashion. hallucinatoriness The state or condition of being hallucinatory. hallucinatory Partaking of, or tending to produce, hallucination. hallucinaut A person who is hallucinating. hallucined Hallucinated. hallucinogen Any substance tending to induce hallucination. hallucinogenesis The formation of hallucinations. hallucinogenic Producing hallucinations. hallucinogenically in a hallucinogenic manner hallucinogenicity The quality of being hallucinogenic, i.e. being able to induce hallucinations. hallucinogenlike Resembling or characteristic of a hallucinogen. hallucinogenre A genre that deals with, or attempts to mimic the effects of, hallucinogenic drugs. hallucinoid Resembling a hallucination. hallucinosis A mental state of hallucination. hallucinotic Relating to hallucinosis. Halluin A town in Nord department, Hauts-de-France, France. Hallum A surname. Hallums A surname from Middle English. hallux A big toe. hallway A corridor in a building that connects rooms. Hally A rare spelling variant of Hallie, diminutive of the female given name Harriet. Hallyu Synonym of Korean Wave. halma A board game invented by George Howard Monks in which the players' men jump over those in adjacent squares. Halmahera A large island of Indonesia, the largest in the Maluku islands. halmalille The tree Berrya cordifolia. Halman A surname. halmas The feast of All Saints' Day. halmatogenesis The sudden appearance of new characters in animals or plants; saltatory or discontinuous variation. Halmeu A village and commune of Satu Mare County, Romania. halmoni An elderly Korean woman, typically a grandmother. halmos The symbol “∎” marking the end of a proof. halmote A court held by the lord of a manor within his hall. Halmstad A town in Halland, in southwestern Sweden. Halnon A surname. halo A circular band of coloured light, visible around the sun or moon etc., caused by reflection and refraction of light by ice crystals in the atmosphere. Haloa An Attic festival, celebrated principally at Eleusis, in honour of Demeter, Dionysus, and Poseidon. haloacene Any halogenated acene haloacetamide Any amide of a haloacetic acid haloacetate A salt or ester of a haloacetic acid. haloacetic Describing a halo- derivative of an acetic group haloacetonitrile Any halogenated derivative of acetonitrile haloacetylene Any halogen substituted acetylene; a haloalkyne haloacid Any halogen derivative of a carboxylic acid (but especially 2-chloro-carboxylic acids that are active in cell biology). haloadamantane Any compound formally derived from adamantane by replacing one or more hydrogen atoms with a halogen haloadaptable Able to adapt to varying halide concentrations haloadaptation adaptation to varying halide concentrations haloalcohol halohydrin haloaldehyde Any halogenated derivative of an aldehyde haloaliphatic Any halogen derivative of an aliphatic compound, especially an aliphatic halide haloalkaline alkaline and rich in salts haloalkaliphile Any haloalkaliphilic organism. haloalkaliphilic Adapted to saline and alkaline conditions haloalkane Any alkane in which one or more hydrogen atoms has been replaced by that of a halogen haloalkanoic Describing any halo- derivative of an aliphatic carboxylic acid haloalkene Any halogen substituted alkene haloalkenyl Any halogen-substituted alkenyl radical haloalkoxy Any halogenated alkoxy group haloalkyl Any alkyl radical having one or more hydrogen atoms replaced by a halogen atom. haloalkylating Synonym of haloalkylation. haloalkylation Any reaction that adds the elements of an alkyl halide across a double bond haloalkyne Any halogen substituted alkyne; a haloacetylene haloamide Any N-halogen derivative of an amide haloamine Any N-halogen-substituted amine haloanhydride Any halogenated anhydride haloanthracene Any halogenated derivative of anthracene haloarchaeal Relating to the haloarchaea haloarchaeon Any halophile microorganism of the class Haloarchaea (or Halobacteria) haloarene Any halogenated arene haloaromatic Any halogen derivative of an aromatic compound, especially an aromatic halide haloaryl Any halogen substituted aryl radical or group halobacterial Relating to halobacteria halobacterium Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt. halobenzene Any halogenated derivative of benzene. halobenzoic Relating to any halogen-substituted benzoic acid halobenzyl A halogenated derivative of a benzyl radical halobetasol Synonym of ulobetasol. halobiid Any mollusc of the family †Halobiidae. halobiont an organism that lives in a salty environment halobios life in the oceans; marine life collectively halobiotic That lives in the sea or salt water. haloborane Any halogen substituted borane haloboration Any addition reaction in which a halogen and boron are added across a double bond. haloboronic Of or pertaining to a haloboronic acid or its derivatives halobutane Any compound consisting of a butane molecule with one or more of the hydrogen atoms replaced by halogen atoms. halocapnine The sulfated amino acid (E)-2-amino-3,4-dihydroxy-17-methyl-2-(sulfomethyl)octadec-5-enoate halocarbon any compound formally derived from a hydrocarbon by replacing at least one hydrogen atom with a halogen, but especially by replacing all hydrogen atoms with halogen(s) halochalcogenate A salt or ester of a variant of a chalcogenate, where one oxygen atom is replaced by a halogen. halochromic Of, pertaining to, or exhibiting halochromism halochromism Any change in colour resulting from a chemical reaction, especially from a change in pH halocin Any of a group of bacteriocins produced by halophilic Archaea. halocinonide A topical corticosteroid. haloclasty The process of weathering caused by the growth and expansion of salt crystals. halocline a strong, vertical salinity gradient; the (sometimes indistinct) border between layers of water that contain different amounts of salt halocyanin A small blue protein, present in bacteria of the genus Natronobacterium, that contains a cuprous copper atom. halocyclization Any reaction that involves both cyclization and halogenation halocyprid Any ostracod in the order Halocyprida. halocypridid Any ostracod of the order Halocyprida haloduracin A particular bacteriocin produced by the bacterium Bacillus halodurans. haloed Encircled with a halo. haloenol Any halogenated derivative of an enol haloenolate Any halogenated enolate. haloenone Any halogenated enone haloenzyme Any enzyme that is activated by a cofactor. haloesque Resembling or characteristic of a halo. haloethane Any compound consisting of a ethane molecule with one or more of the hydrogen atoms replaced by halogen atoms. haloether Any halogenated ether haloethylene Any halogenated derivative of ethylene halofantrine A particular antimalarial agent that is a derivative of a halogenated phenanthrene halofenate A particular antilipidemic and uricosuric drug. halofenozide A diacylhydrazine insecticide. halofinding The use of computation to identify haloes in clusters of galaxies or other crowded regions. halofluorination The addition of fluorine and another halogen to a molecule. haloform Any trihalomethane with all halogens the same, CHX₃. halofuginone A coccidiostat used in veterinary medicine; a synthetic halogenated derivative of febrifugine. halofuran Any halogen derivative of a furan halogen Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine. halogenase Any enzyme that catalyzes a halogenation reaction halogenate To treat with, or react with, a halogen or a hydrohalic acid. halogenated Treated or reacted with a halogen. halogenation The reaction of a halogen with something, especially the replacement of a hydrogen atom of an organic compound with a halogen one. halogenesis The deposition of salt. halogenic Relating to, characteristic of, or containing a halogen halogenide Synonym of halide. halogenite An oxyanion containing a halogen in the +3 oxidation state. halogenoalkane Synonym of haloalkane halogenobenzyl Any halogen derivative of a benzylic radical halogenoderma A skin eruption resulting from exposure to halogen-containing drugs or substances. halogenohydrocarbon A hydrocarbon molecule with a halogen atom attached. halogenous Of a compound: containing a halogen as part of the molecule. halogeton Any plant of the genus Halogeton in the family Amaranthaceae. halography the description of salts halohydric Pertaining to the acids formed from hydrogen and a halogen. halohydrin Any of a class of organic compound having a hydroxyl functional group and a halogen on neighbouring carbon atoms. halohydrocarbon Synonym of halocarbon. halohydroxylation Any addition reaction in which hydroxyl and halide residues are added across a double bond or triple bond haloid Resembling salt; said of certain binary compounds consisting of a metal united to a negative element or radical, and now chiefly applied to the chlorides, bromides, iodides, and sometimes the fluorides and cyanides.