HEXAPETALOUS 



567 



HIGH 



Hexapetalous (heks-ap-ef -al-us) [ef , six ; -ira?u>v, a 



leaf]. In biology, having six petals. 

 Hexaphyllous (heks-af-il' '-us) [ef , six ; Qv?Jlov, leaf]. 



In biology, having six leaves or leaflets. 

 Hexapod [heks / -ap-od) [£.f, six; -oic, foot]. In 



biology, having six feet, as the true insects. 

 Hexapodan (heks-ap' -o-dan). Same as Hexapod. 

 Hexapterous (heks-ap' -ter-us) [t$, six ; Trrepdv, a 



wing]. In biology, having six wings or wing-like 



appendages. 

 Hexastemonous (heks-as-tem' '-o-nus) [ff, six ; arhjiuv, 



warp, taken as stamen]. Same as Hexandrous. 

 Hexastichous (heks-as' '-tik-us) [efdar^oc, of six rows]. 



In biology, having the parts or organs arranged in six 



rows. 

 Hexatomic (heks-at-om' -ik) [e|ac, six ; aropoc, an 



atom]. In chemistry, consisting of six atoms ; also 



k applied to atoms that are hexavalent, and to alcohols 

 or other compounds having six replaceable hydrogen 

 atoms, 

 exavalent (heks-av' -al-ent) \i$ac, six ; valens, having 

 power]. In chemistry, having the same saturating or 

 combining-power as six hydrogen atoms, or a valence 

 of six. 



Hexicology (heks-ik-ol' -o-je) . See Hexiology. 



Hexiology (heks-e-ol* -o-je) [ef/f, habit ; /.(f)oc, science]. 

 The science of the relations of the organism to its 

 environment. 



Hexoses (heks-o / -sez) \i$ac, six]. The aldehyd or 

 ketone derivatives of the hexahydric alcohols. They 

 occur frequently in plants, especially in ripe fruits. 

 They are formed by the hydrolytic decomposition of 

 all disaccharids and polysaccharids when they are 

 boiled with dilute acids, or acted upon by ferments. 

 They possess feeble reducing-power. They precipitate 

 cuprous oxid from warm alkaline cupric solutions, one 

 molecule of hexose precipitating about five atoms of 

 copper. This is the basis of the method for the vol- 

 umetric estimation of glucose by means of Fehling's 

 solution. When exposed to Schizomycetes the hexoses 

 readily undergo fermentation. See Carbohydrates, 

 Table of. 



Hexylamin (heks-il'-am-in). See Caproylamin. 



Hey's Hernia. See Hernia, Encysted. H.'s Liga- 

 ment. See Ligament. 



Hiation (hi- a* '-shun) \hiare, to gape]. The act of gap- 

 ing or yawning. Cf. Pandiculation. 



Hiatus (hi-a f -tus) \hiare, to gape]. A space or open- 

 ing. Also, the vulva. H. aorticus. See Aortic 

 Opening. H. of Fallopius, the shallow groove on 

 the petrous portion of the temporal bone. H. 

 sacralis, a slit-like opening on the posterior surface 

 of the sacrum. It is continuous above with the spinal 

 canal. H. semilunaris, a crescentic furrow upon 

 the outer wall of the middle meatus of the nose. 



Hibernaculum (hi-ber-nak' -u-lum) [L., a winter resi- 

 dence : //. ,Hibernacula~\ . In biology, an organ fitted to 

 protect delicate parts during the winter ; a winter bud. 



Hibernation (hi-ber-na' -shun) [hibemus, winter]. The 

 dormant condition or winter-sleep of certain animals, 

 notably bears, hedgehogs, etc., in which animation is 

 almost suspended. Respiration and circulation are 

 greatly reduced, and nutrition is performed mainly at 

 the expense of the fatty tissues of the animal. 



Hiccup, or Hiccough (hik'-up) [hie, a mimic word; 

 ME., cough, a cough]. A spasmodic contraction of 

 the diaphragm causing inspiration, followed by a 

 sudden closure of the glottis. 



Hickory (hik'-or-e) [an American Indian name]. The 

 bark of shellbark hickory, Hicoria, or Carya alba : 

 it is tonic and anti-intermittent, and useful in malarial 

 fevers. Dose of the fld. ext. 3 ss-j. Unof. 





Hicks (Braxton), Method of. In obstetrics a method 

 of performing version. It is the bipolar or combined 

 internal and external method. H., Sign of. See 

 Signs and Symptoms, Table of. 



Hidden Seizure. A popular name for various forms of 

 slight or sudden epileptiform attacks. 



Hide (hid) [ME., hide, skin]. The skin of an animal. 

 The skins of the ox, cow, buffalo, horse, etc., that are 

 utilized in the manufacture of leather, are especially 

 so termed. If obtained from younger animals of the 

 same kind, they are called kips. H. -bound Disease. 

 See Scleroderma. H. -bound Skin. See Sclero- 

 derma. H.-glue. See Glue. 



Hidro- (hi'-dro-) [I6puc, sweat]. A prefix signifying 

 sweat. 



Hidroa (hid-ro , -ah) [ifipoa, sweat-spots ; sudamina]. 

 Sudamina; any dermal lesion associated with or 

 caused by profuse sweating. 



Hidrocystoma (hid-ro-sis-to / -mah) [I6p<ja, sudamina ; 

 Kicrir, a cyst; bfia, a tumor: pi., Hidrocystomata~\. 

 A variety of sudamina appearing on the face, especi- 

 ally in women in middle and advanced life. 



Hidromancy (hid'-ro-man-se) \idpac, sweat; uavreia, 

 divination]. The forming of a prognosis from exami- 

 nation of the perspiration. 



Hidronosus (hid-ron' '-o-sus) [W/kjc, sweat; roaoc, dis- 

 ease]. Any disease of the sweat-glands. 



Hidropedesis (hid-ro-ped-e* -sis) \i6ptjc, sweat ; -nSrjaic, 

 a leaping]. Excessive sweating. 



Hidroplania (hid-ro-pla' -ne-ah) [id/xic, sweat ; rr/avri, 

 a wandering]. Sweating in an unusual portion of the 

 body. 



Hidropoiesis (hid-ro-poi-e'-sis) [idp&c , sweat ; Trotieiv, 

 to make]. The process of the formation and excre- 

 tion of sweat. 



Hidropoietic (hid-ro-poi-et' -ik) \idpuc, sweat; iroueiv, 

 to make] . Relating to hidropoiesis ; sudoriparous. 



Hidrorrhea (hid-ror-e* '-ah) \idpcjq, sweat ; poia, a flow]. 

 Excessive flow of sweat. 



Hidrosadenitis (hid-ros-ad-en-V-tis) \i6pac, sweat; 

 aiijv, gland ; trie, inflammation]. Inflammation of 

 the sweat-glands. 



Hidroschesis (hid-ros 1 '-kes-is) \\fipuc , sweat ; oxeoic, 

 retention]. Retention or suppression of the sweat. 



Hidrosis (kid-ro / -sis) \idpuc, sweat]. 1. The forma- 

 tion and excretion of sweat. 2. Abnormally profuse 

 sweating. 3. Any skin-disease marked by disorder of 

 the sweat-glands. 



Hidrotic (hid-rot'-ik) [IdpariKoc, producing sweat]. I. 

 Diaphoretic or sudorific. 2. A medicine that causes 

 sweating. 



Hidrotopathic (hid-ro-to-path' '-ik) \ldpi>c, sweat ; Tradoc, 

 disease]. Relating to a morbid state of the perspira- 

 tory function. 



Hidrotopoiesis (hid-ro to-poi-e* -sis) [idpuc, sweat ; iroii- 

 en ]. Same as Hidropoiesis. 



Hidrotopoietic (hid-ro-to-poi-ef -ik). See Hidropoietic. 



Hidrozymases (hi-dro-zi-ma'-sez) \l6p£tc, sweat : ^v/in, 

 ferment]. Sweat-ferments, including amylase, emul- 

 sin, and pepsin. 



Hiera picra {hi'-er-ah pi'-krah) [L. , sacred bitters]. 

 Pulvis aloes et canellae. See Aloes. 



Hieracium (hi-er-a' -se-um) [iep&Kiov, hawk- weed]. A 

 genus of composite-flowered herbs. In the old world, 

 H. murorum and H. pilosella, and in the U. S.. 

 H. scabrum and H. venosum are popularly esteemed 

 as useful remedies. They have astringent and pectoral 

 qualities. Unof. 



Hieralgia (hi-er-al' '-j'e-ah) [}ep6v, sacred, sacrum ; 

 a/.yoc, pain]. Pain in the sacrum. 



High (hi) [ME., high, high]. I. Elevated far above 

 a base. 2. Intensified in physical quality, as temper- 



