HELICOTREMA 



548 



HEMABAROMETER 



Helicotrema (hel-ik-o-tre' -mah) \pii%, helix, coil ; 

 rpfjpa, hole]. The opening connecting the scales tym- 

 pani and vestibuli of the spiral canal of the cochlea. 



Heliencephalitis (he-le-en-sefal-i'-lis) [tjaloc, sun ; 

 eynecpaAoc, brain; irig, inflammation]. Encephalitis 

 caused by exposure to the sun's rays. 



Heliodorus's Bandage. See Bandage. 



Heliomyelitis (he-le-o-mi-el-i'-tis) [i']A ■ c , sun ; pveloc, 

 marrow; trig, inflammation]. Myelitis caused by ex- 

 posure to the sun's rays. 



Helionosus (he-le-on' '-o-sus) \ffkiog, sun; v6oog, disease]. 

 Sunstroke. 



Heliophag {he' '-le-o-fag) [rJAiog, sun ; <j>ayciv, to de- 

 vour]. A name given to the animal pigment-cell, as 

 being a supposed absorber of the radiant energy of the 

 sun's light and heat. 



Heliophobia (he-le-o-fo' -be-aJi) \ffkmg, sun ; <po(3og, 

 fear]. Morbid fear of exposure to the sun's rays. 



Heliosis (he-le-o'-sis) [fj/aog, sun]. A sun-bath ; also, 

 sunstroke. 



Heliotherapy (he-le-o-ther'-ap-e) \ffkiog, sun ; Oepa-eia, 

 treatment] . The treatment of disease by exposure of 

 the body to sunlight. Sun-bathing. 



Heliotrope (he' -le-o-trop) \jfkiog, sun ; Tpeneiv, to turn]. 

 Any plant of the boraginaceous genus Heliotropium. 

 H. europaeum is aperient, and is said to cure warts 

 and ulcers. Unof. 



Heliotropin (he-le-of '-ro-pin) \jfuoq, the sun ; rpEiretv, 

 to turn]. I. See Piperonal. 2. A poisonous alkaloid 

 from Heliotropium europaum, a European species of 

 heliotrope. Its action is little known. Unof. 



Heliotropism (he-le-of '-ro-pizm) [r/Aioc, the sun ; Tpercecv, 

 to turn]. In biology, that property of a plant or 

 plant-organ by virtue of which it bends toward or 

 away from the sunlight. 



Heliotropy (he-le-of '-ro-pe) \jJAiog, the sun ; rpoirrj, a 

 turning]. Same as Heliotropism. 



Helix (he'-liks) [e/Uf, a coil]. The margin of the ex- 

 ternal ear. 



Hellebore, Black. See Helleborus. H., White. See 

 Veratrum album. * 



Helleborei'n (hel-eb-or-e'-in). See Helleborus. 



Helleborin (hel'-e-bo-rin) \_EAAe(iopog, hellebore], C 36 - 

 H 42 O fi -\- 4.H 2 0. A crystalline glucosid of Helleborus 

 viridis, insoluble in water. It is a cardiac and ner- 

 vous poison of great intensity. See Helleborus. 



Helleborism {hel' '-eb-or-izm) [e?2£(3opi£eiv, to dose with 

 hellebore]. The treatment of disease with hellebore ; 

 the morbid condition induced by the free exhibition 

 of hellebore. 



Helleborus (hel-eb' '-or-us) [eXkifiopoq, hellebore: gen., 

 Hellebori']. The root of H. niger, black hellebore, 

 with properties due to two glucosids, helleborin, C 36 - 

 H 42 8 , and helleborein, C 26 H u O, 5 . It is a drastic 

 hydragogue cathartic, and emmenagogue, and was for- 

 merly a popular remedy for insanity, dropsy, and 

 amenorrhea. Helleborein is sometimes used in cardiac 

 affections as a substitute for digitalis, its action being 

 obtained by smaller doses and with less irritation. H. 

 nigri., Ext. Unof. Dose gr. j-x, cautiously. H. 

 nigri., Ext., Fid. Unof. Dose mjj-xv. Helle- 

 borein. Unof. Very soluble in water. Dose gr. 



tViV 



Heller's Tests. See Tests, Table of. 



Hellmund's Ointment. A narcotic ointment composed 

 of acetate of lead, io parts ; extract of conium, 30 

 parts; balsam of Peru, 30 parts; Sydenham's lauda- 

 num, 5 parts ; and cerate, 240 parts. 



Helmerich's Ointment. An ointment used in the 

 treatment of scabies. It consists of sublimated sul- 

 phur, I dram ; potassium carbonate, y£ dram ; and 

 lard, dyi drams. The ointment should remain in 



contact with the diseased surface for four or five 

 hours. 



Helmholtz's Apparatus. A galvanometer consisting 

 of two equal and vertical coils, with a magnetic needle 

 midway between them. H.'s Ligament. See Liga- 

 ment. H.'s Line. See Lines, Table of. 



Helminth (hel'-minth) [eApivg, worm]. A worm; an 

 intestinal or entozoic worm. 



Helminthagogue (hel-minth' '-ag-og). See Anthel- 

 mintic. 



Helminthiasis (hel-min-thi' -as-is) [efyuvdiav, to suffer 

 from worms]. A condition marked by the presence 

 of parasites in the body, especially intestinal worms. 

 Also, a disorder or lesion caused by worms. 



Helminthicide (hel-minth' -is-id) [eA/iivg, a worm ; 

 ctzdere, to kill]. See Vermicide. 



Helminthics (hel-min'-thiks). See Anthelmintics. 



Helminthochorton (hel-min-tho-kor' -ton) [eA/luvc, a 

 worm; jo/jrof, grass]. See Corsican Moss. 



Helminthoid (hel-min'-thoid) [kAp.ivg, a worm ; eldog, 

 likeness]. Shaped like a worm. 



Helminthology (hel-min-thol'-o-je) \i\pivg, a worm ; 

 Aoyog, science]. A treatise on worms, especially 

 those parasitic within the body. 



Helminthoma (hcl-min-tho' -mah) [eTipcvg, a worm ; 

 bjia, a tumor: pi. , Helminthomata~\. A tumor 

 caused by the presence of a parasitic worm. See 

 Bulam Boil and Guinea-worm. 



Helminthoncus (hel-minth-ong'-hus) [eA/itvc, a worm ; 

 bynoq, a tumor]. An old term for a parasitic skin-dis- 

 ease. 



Helminthophobia (hel-min-tho-fo' -be-ah) [e~Ap,ivc 

 (eAp.iv8-) , & worm; f6/3oq, fear]. A nervous state 

 produced by the presence or thought of parasitic 

 worms. 



Helminthous (hel-min' -thus) \fkp:ivc, a worm]. 

 Wormy. 



Helocerous (he-los' -er-us) \jfAoq, a nail ; nipac, horn]. 

 In biology, having capitate antennae. 



Heloderma (he-lo-der'-mah) [tj'aoq, wart ; dtpfia, skin]. 

 A genus of lizards. H. horridum, of Mexico, and 

 H. suspectum, of Arizona (called Gila Monster) , are 

 said to be the only known species of venomous lizards. 



Helodermatous (he-lo-der' '-mat-us) \ff/x>q, a nail, wart; 

 fieppa, skin] . In biology, having a warty or tuber- 

 culous skin. 



Helodes (he-lo'-dez) [eAof, a swamp]. Swampy, or 

 marshy. Also, a fever attended with profuse sweat- 

 ing. Also, marsh-fever. 



Helonias (hel-o'-ne-as) [eTioq, a marsh]. A genus of 

 monocotyledonous plants. H. dioica. See Chama- 

 lirion. 



Helonin (hel-o'-nin) \_eaoc, a marsh]. A crude precip- 

 itate from the tincture of Chanurlirion carolinianum. 

 It is prescribed for uterine affections, and is tonic and 

 diuretic. Caution should be observed in its use. 

 Dose, gr. ij-iv. Unof. 



Helopyra (hel-op'-e-rah) [e/loc, marsh; nvp, fever]. 

 Malarial fever. 



Helosis (hel-o'-sis) \f/loc, nail, bract]. I. A genus of 

 tropical American plants. H. brasiliensis, cayen- 

 nensis, and jamaicensis, are styptic and vulnerary 

 remedies. Unof. 2. An old name for inversion of 

 the eyelids; strabismus; eye-spasm; plica polonica; 

 the term is now seldom employed. 



Helvetia Green. See Pigments, Conspectus of. 



Helvolous (Iicl'-vo-lus) [dim. of helvus, yellow]. 

 Tawny, or reddish-yellow. 



Helweg, Triangular Tract of. A tract that appears 

 either in juxtaposition with, or as the most ventral part 

 of, the ventro-lateral tract of the spinal cord. 



Hemabarometer (hem-ab-ar-otn' -et-er) \_aipa, blood ; 



