ISCHIODIDYMUS 



628 



ISODYNAMIC 



antenna of a crustacean. It is borne upon the basicerite 

 and bears the merocerite. 



Ischiodidymus (is-ke-o-did f -im-us) [Icxiov, hip; 6i6v- 

 fiog, double]. A double monstrosity united at the hips. 



Ischiognathite (is-ke-og' -ndth-lt ) [lax'iov , hips ; yvadog, 

 jaw]. The third joint of any one of the mouth-parts 

 of an arthropod. 



Ischiomyelitis (is-he-o-mi-el-i'-tis) [laxlov, hip, loins ; 

 fiveMg, marrow ; nig, inflammation] . Lumbar myeli- 

 tis ; osphyomyelitis. 



Ischiopagus {is-ke-op' -ag-us) [laxlov, hip ; nayog, 

 united]. A monomphalic monstrosity united by the 

 coccyges and the sacra. 



Ischiophthisis (is-ke-off ' -this-is) [laxtov, hip ; tydiaig, a 

 wasting]. Emaciation associated with or due to hip- 

 joint disease. 



Ischiopodite {is-ke-op' -o-dit ) [laxlov, hip-joint ; wovg, 

 foot]. In biology, the third joint of the inner (endo- 

 podile) of the two main divisions of the typical limb 

 of a crustacean. 



Ischiorectal (is-ke-o-rek'-tal) [lax iov > ischium; rectus, 

 straight]. Pertaining to both ischium and rectum. 

 I. Abscess or I. Cellulitis, an inflammation of the 

 areolar tissue of the ischiorectal fossa involving the 

 rectum and the thigh. Suppuration may occur at any 

 point of the inflammation, but is ordinarily near the 

 anus. I. Fascia. See Fascia. I. Fossa, a deep 

 fossa filled with fatty tissue situated on either side of 

 and between the rectum and the ischium. 



Ischium {is'-ke-um) [laxlov, hip]. I. The inferior 

 part of the os innominatum or hip-bone ; the bone upon 

 which the body rests in a sitting posture. It forms a 

 part, also, of the acetabulum. (See illustration on p. 

 228.) 2. The third joint of any appendage of a 

 crustacean, e. g., the ischiognathite and. the ischiopodite. 



Ischnogyria (isk-no-jir f -e-ah) [laxvdg, feeble ; yvpog, 

 curve]. A condition attended with slight develop- 

 ment of the cerebral convolutions. 



Ischnous (isk'-nus) [laxvdg, thin]. Emaciated. 



Ischo- (is f -ko-) [_lax£iv, to suppress]. A prefix mean- 

 ing suppressed, stopped, or checked. 



Ischoblennia (is-ko-blen' '-e-ah) [laxeiv, to suppress ; 

 /3/iwoc, mucus]. The suppression of a mucous dis- 

 charge. 



Ischocenosis (is-ko-sen-o'-sis) [laxeiv, to suppress ; 

 nevuaig, discharge]. The suppression of any estab- 

 lished or normal discharge. 



Ischocholia (is-ko-ko'-le-ah) [laxeiv, to suppress ; x°^V> 

 bile]. A suppression of the flow of bile. 



Ischogalactia (is-ko-gal-ak' -te-ah) [laxeiv, to suppress ; 

 yaAa, milk]. Suppression of the natural flow of 

 milk. 



Ischolochia (is-ko-lo' -ke-ah) [laxeiv, to suppress ; 

 XSxia, lochia]. Suppression of the lochial flow. 



Ischomenia (is-ko-me'-ne ah) [laxeiv, to suppress ; fiijv, 

 month, menses]. Suppression of the menstrual flow. 



Ischophonia (is-ko-fo' -ne-ah) [laxeiv, to suppress ; 

 Qwvr/, voice]. Aphonia. An impediment in speech. 



Ischopyosis (is-ko-pi-o'-sis) [laxeiv, to suppress ; irvov, 

 pus]. The checking of any discharge of pus. . 



Ischospermia (is-ko-sper' -me-ah) [laxeiv, to check; 

 OKtpua, seed]. Suppression of semen. 



Ischuretic (is-ku-ret f -ik) [laxeiv, to suppress ; ovpov, 

 urine]. I. Relating to or relieving ischuria. 2. A 

 remedy or agent that relieves retention or suppression 

 of urine. 



Ischuria (is-ku'-re-ah) [laxeiv, to suppress ; ovpov, 

 urine]. Retention or suppression of urine. I. para- 

 doxa, the condition in which there is an excessive 

 distention of the bladder, with constant dribbling of 

 urine. 



Ischyomyelitis (is-ke-o-mi-eli' -tis). See Ischiomyelitis. 



Isidium (i-sid / -e-um) [L. : pi., Isidid\. In biology, 

 an excrescence frequently found upon lichens ; it cor- 

 responds to a soredium. 



Isinglass (i'-zing-glas). See Ichthyocolla and Glu, . 

 I., Vegetable. See Agar-agar. 



Island (i'-land) [ME. , Hand, island]. See Insula 

 and Blood-island. I. of Reil, the central lobe of the 

 hemisphere of the brain, situated at the base, on either 

 side of the fissure of Sylvius. See Insula. 



Iso- {i'-so-) [laog, equal]. A prefix signifying equality. 



Iso-amylamin (i-so-am-W -atn-in) [laog, equal; amylum, 

 starch ; amin\. A ptomaine obtained in the distilla- 

 tion of horn with potassic hydrate ; it also occurs in 

 the putrefaction of yeast. It boils at 95 C. , and is 

 non-poisonous. See Ptomaines, Table of. 



Iso-apiol (i-so-a f -p:-ol) [laog, equal ; apium, parsley ; 

 • oleum, oil]. A substance obtained from apiol, exer- 

 cising a powerful influence upon the vasomotor 

 system. 



Isobar (i'-so-bar) [laog, equal; (3dpog, weight]. In 

 meteorology, a term denoting a line drawn through 

 points having the same synchronous barometric pres- 

 sure. 



Isobrious {i-so' -bre-us) [laog, equal ; (iplav, to be 

 strong, to make strong]. In biology, applied to 

 dicotyledonous embryos, the two lobes of which grow 

 with equal vigor ; isodynamous. 



Isocaprolactone (i-so-kap-ro-lak' ' -ton) [laog, equal ; 

 caper, a goat; lac, milk], C 6 H 10 O 2 . A compound 

 produced by the distillation of terebic acid. It melts 

 at about 7° C. ; boils at 206 C, or 207 C. ; at o°C. 

 it is soluble in double its bulk of water. 



Isocercal (i-so-ser' -kal) [laog, equal; Kepnog, tail]. In 

 biology, having the tail symmetrically divided by the 

 straight back-bone. 



Isocholesterin (i-so-ko-les' '-ter-in) [laog, equal ; x n '''h 

 bile; arkap, fat], C 26 H 44 0. A substance isomeric 

 with cholesterin, and found in distilled sheeps' fat ; it 

 melts at 138 C. 



Isocholin (i-so- ko' '-tin) [laog, equal ; jo?^, bile], C-,11,-,- 

 N0 2 . A body isomeric with cholin ; it is found in fly- 

 agaric, and may be formed by oxidizing cholin. 



Isochromatic (i-so-kro-maf -ik) [laog, equal ; XP^^> 

 color]. Having the same color. 



Isochronism (i-sok' -ro-nizm) [laog, equal ; jp^wf, 

 time]. The quality of occurring at equal intervals of 

 time, or lasting for equal periods of time. 



Isochronous \i-sok' -ro-nus) [laog, equal ; ^«5wc, 

 time]. Having, occurring at, or occupying equal in- 

 tervals of time. 



Isocoria (i-so-ko'-re-ah) [laog, equal ; n6pr), pupil]. 

 Equality in diameter of the two pupils. 



Isocyclus (i-so-si'-klus) [laog, equal ; nvulog, circle]. 

 In biology, an organism consisting of a series m 

 similar rings. 



Isodactylous (i-so-dak'-til-us) [laog, equal ; rfdmAof, 

 digit]. In biology, having the toes and digits alike. 



Isodiametric (i-so-di-atn-et'-rik) [laog, equal : 

 through; /tirpar, measure]. Having equal diam 



Isodimorphism (i-so-di-morf'-ism) [laog, equal ; 

 iYipop(pog, two-formed]. A form of dimorphism, 

 characterized by the appearance of a substance in two 

 similar but incompatible forms. 



Isodont (i'-so-dont) [laog, equal; bfio'vg, tooth]. Hav- 

 ing teeth of the same size and shape. 



Isodulcite (i-so-dul'-sit). See Rhamnose. 



Isodynamia (i-so-di-nam' -e-ah) [laog, equal ; A' 

 force]. The property of being isodynamic. 



Isodynamic (i-so-di-nam'-ih) [laog, equal; <^niun 

 force]. Having equal force. I. Foods, those that 

 produce an equal amount of heat in undergoing the 

 chemic changes of digestion. 



