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HEP 



to kill, and /Sf, food, because it is poi- 

 sonous. The Christmas-rose and Bear's- 

 foot are species; the last, called also stink- 

 ing hellebore, is indigenous in Uritain. 



HELLEN'IC. Applied to the common 

 Greek dialect that prevailed after the time 

 of Alexander. 



HELLENIS'TIC, 'EAXjjwa-TJjf, a Grecian 

 Jew. The Hellenistic language was the 

 Greek spoken by the Jews who lived in 

 Egypt, and other countries where the 

 Greek language prevailed. 



HELM, Sax. helma. The instrument by 

 which a ship is steered, consisting of a 

 rudder, a tiller, and, in large vessels, a 

 wheel. 



HEL'MET, a piece of defensive armour 

 for the head, a morion. The modern hel- 

 met is worn by horsemen, to defend the 

 head against the broadsword. 



HELMINTIIOL'OGY, from 'D.UJK, a worm, 

 and \vyos, a discourse. That branch of 

 zoology which treats of worms. 



HEL'MSM\N, the man who steers. A 

 good helmsman keeps the ship to her 

 course by timely corrections when re- 

 quired ; a bad helmsman keeps her perpe- 

 tually yawing from side to side. 



HELO'SIS, an eversion of the eyelids, 

 from i,lu, to turn. 



KE'LOTS, il'/.&rau- In ancient history, 

 the slaves of the Spartans. 



HELVER. In mining, the handle of a 

 tool. 



HEM. In architecture, the spiral pro- 

 jecting part of the Ionic capital. 



HEM'ACRYMES (Gr.), from StifAOi, blood, 

 and xeuftos, cold. Animals with cold 

 blood.* 



HEM'ATHERMS, from i~iu.it, and 

 heat. Animals with warm blood. 



HEMERALo'piAjfrom r,Mfet, the day, and 

 a*J/, the eye. A defect in the sight, 

 which consists in being able to see in 

 broad daylight, but not in the evening, 

 arising from a torpid state of the retina. 



HEM'EROBAP'TISTS,^U,S, day, /SaTTia>, 

 to baptise. An ancient sect among the 

 Jews, who washed themselves every day. 



HEMEROCA.I/LIS, the day-lily. A genus 

 of perennial plants. Hexandria 3fono- 

 t/ynia. Name from fiftieoc, a day, and 

 xoc.?.o;, beautiful, because the'flowers open 

 in the day, and shut at night. Temperate 

 climates. 



HEMICKA'NIA, from r,uufJt, half, and 

 X^CMOV, the head. A pain which affects 

 one side of the head only. 



HEM'ICYCLE, a half-cycle, from ^u, rv;. 

 half, and xvxKos, a circle. See 'SEMI- 

 CIRCLE. 



HEMIQ'AMOOS, from r,fjuirut, and yotftef, 

 marriage. A term employed in botany, 



when of two florets on the same !-]>ikolet 

 one is neuter, and the other unisexual. 



HEHI'LYTRA, r t [jugv(, half, and tt.vrfot, 

 sheath. The superior wings of tetrap'.e- 

 rous insects. 



HEMIOLOG'AMOCS, from '/-,u.itrj;, c?.c;, 

 entire, and <y<x.u.o;. AVhen, in grasses, 

 one of two florets is neuter, and the other 

 hermaphrodite. 



HE'MIOPY, from v,u.urv;, half, and 

 flTT,tKx/, to see. A defect of vision, 

 wherein a person sees only half an object. 



HE'MIPLEOT, from r,puni;, half, and 

 tr'^a-trtu, to strike. A species of paralysis, in 

 which only one side of the body is affected. 



HEMIP'TERA, ) from r,/M(ru;, half, and 



HEMIP'TERS, ) w^, a wing. An or- 

 der of insects comprising the Geocorisae 

 and Hydrocorisae, and so named because 

 their wing-covers are half membrana- 

 ceous, and half coriaceous. The cock- 

 roach, locust, lantern-fly, and grasshopper 

 are examples. 



HEMISPHERE, from i/MOVf, half, and 

 pQcuqtov, a sphere. The half of a sphere 

 or globe, when it is supposed to be cut 

 through its centre, in the plane of one of 

 its great circles. Thus the equator di- 

 vides the earth into the northern and 

 southern hemispheres; and the equinoctial 

 line divides the celestial sphere in a simi- 

 lar manner. The horizon also divides the 

 earth into two parts, the upper and lower 

 hemispheres. 



HEM'ITUSE. r,tUT6ios- A half-tone, now 

 called a semitone. 



HEM'ITKOPE, from fi/MOVf, half, and 

 rfttra, to turn, half-turned. A hemitrope 

 crystal has one segment turned through 

 half the circumference of a circle. 



HEMP. 1. In manufactures, the fibrous 

 rind of the Cannabis saliva, which is spun 

 into yarn, for making ropes, canvass, &c. 

 It is stronger, and coarser in the fibre 



than flax. 2. In botany, see CA..NSABIS 



and EUPATORIUM. 



HEN DZC'AOON, from !?, eleven, and 

 yeovia., a corner. A ngure having eleven 

 equal sides and as many equal angles. 



HEX'DECASYL'LA_BIC, a verse of eleven 

 syllables. 



HENRK/IASS, the followers of an Italian 

 monk, named Henry, who preached zea- 

 lously against the corruptions of the Ro- 

 mish Church. 



HE'PAR, faetf, the liver. This term was 

 used by the old chemists to denote a com- 

 pound of sulphur with a metal, which 

 had a liver-brown colour. Thus the sul- 

 phuret of potassium was termed liver of 

 sulphur. 



HEP'ATALGT, from ttra^. the liver, and 

 et/.'/i, pain. Pain in tue liver. 



