ILEOPISOLITIS 



603 



ILLUMINATION 



Ileopisolitis (il-e-o-pis-o-li' -tis) [ei?xiv, to roll ; pisum, 

 a pea ; trie, inflammation]. Inflammation of Peyer's 

 patches or glands. 



Ileoproctostomy (il-e-o-prok-tos' '-to-me) [el/^iv, to roll ; 

 izpuKToq , rectum ; ard/ia, mouth]. The surgical estab- 

 lishment of an artificial communication between the 

 ileum and the rectum. 



Ileorectostomy [il-e-o-rek-tos* -to-me). See Ileoproctos- 

 tomy. 



Ileos (il'-e-os). See Ileus. 



Ileostomy (il-e-os* -to-me) [dXetv, to roll ; aroua, mouth]. 

 The surgical establishment of a passage through 

 the abdominal wall into the ileum, or from the ileum 

 to some other hollow organ. 



Ileotyphus (il-e-o-ti' -fus) [d.7xiv,\.o roll; rvpoc, smoke]. 

 Enteric or typhoid fever. 



Ileum (U'-e-um) [d/xlv, to roll]. The lower portion of 

 the small intestine. It receives its name from its 

 peristaltic movement. 



Ileus (il'-e-us) [el/^oc ; tOtiv, to roll]. Same as Ileac 



Ir Iliac Passion ; volvulus. I. inflammatorius. 

 ynonym of Acute Intestinal Catarrh. I. spasmod- 

 :us. Synonym of Enteralgia. 

 i (i'-leks) [L., the holm-oak]. A genus of aqui- 

 )liaceous trees and shrubs of many species ; the hol- 

 es. I. aquifolium, common European holly; the 

 ark and leaves have medicinal uses. I. cassine. See 

 na. I. opaca, American holly ; it has the proper- 

 ties of I. aquifolium. I. glabra, and I. verticillata, 

 of the U. S. , are tonic, febrifuge, and astringent. See 

 also Mate. All unof. 

 Ilia \iU-e-ah) [L. : //. of Ilium]. The iliac bones; the 



flanks or loins. 

 Iliac {il'-e-ak) [ilia, the flanks]. Pertaining to the ilium 

 or to the flanks. I. Aneurysm, one occurring at the 

 groin. I. Artery. See Arteries, Table of. I. Crest, 

 the upper free margin of the ilium to which the ab- 

 dominal muscles are attached. I. Fascia. See 

 Fascia. I. Fossa. See Fossa. I. Muscle. See 

 Muscles, Table of. I. Region, one of the regions into 

 which the abdomen is conventionally divided. See 

 Abdomen. 

 Iliaco- (il-i'-ak-o-) [ilia, the loins]. A prefix signifying 

 relation to the loins. I. -femoral, relating to the 

 ilium and the femur. I. -trochanteric, relating to 

 the ilium and the great trochanter of the femur. 

 Iliacus {il-i f -ak-us). See Muscles, Table of. 

 Iliadelphus [il-e-ad-el' '-fus) [ilia, flanks ; a6e/.o6c, bro- 

 ther]. A monstrosity double from the pelvis up- 

 ward. 

 Ilicin (il f -is-in) [ilex, the holm-oak]. A crystalline 

 febrifugal principle from the leaves of Ilex aquifo- 

 lium. 

 Ilien (il'-e-en) [ilia, the loins]. Belonging to the ilium 

 itself. 



(il'-e-o-) [ilium, the ilium]. A prefix to denote reta- 

 il to or connection with the ilium. I.-capsularis, 

 a muscle occasionally found in man, originating at 

 the anterior inferior spine of the ilium and in- 

 serted into the iliofemoral ligament. See Muscles, 

 Table of I. -femoral, pertaining conjointly to the 

 ilium and the femur. I.-f. Crease. See Crease. I.-f. 

 Ligament, an inverted Y-shaped ligament extending 

 obliquely across the hip-joint, from the anterior inferior 

 spine of the ilium to the trochanters of the femur, pre- 

 venting over-extension of the joint. I.-f. Triangle, 

 a triangle of which the base is a line drawn from the 

 summit of the great trochanter to the anterior superior 

 spine of the ilium, and the apex is formed by lines drawn 

 backward from the anterior superior spine and upward 

 from the summit of the trochanter. See Triangles, 

 Table of I.-hypogastric, pertaining conjointly to 



4, 



the ilium and the hypogastrium. I.-h. Nerve. See 

 Nerves, Table of. I. -inguinal, pertaining to the 

 ilium and the groin. I.-i. Nerve. See Nerves, Table 

 of. I.-lumbar, pertaining conjointly to the ilium and 

 the loins. I.-l. Artery, a branch of the posterior 

 division of the internal iliac artery, supplying the 

 iliacus, and also the psoas and quadratus lumborum 

 muscles. See Arteries, Table of. I.-l. Muscle, that 

 part of the quadratus lumborum muscle that is inserted 

 into the tips of the processes of the lumbar verte- 

 brae. See Muscles, Table of. I. -pectineal, pertaining 

 conjointly to the ilium and the pubes. I. -p. 



Ligament, that part of the iliac fascia by which 

 Pouparts ligament and the sheath of the crural 

 vessels are attached to the os pubis. I. -p. Line, 

 the ridge reaching from the spine of the os pubis 

 to the auricular surface of the ilium. See Lines, 

 Table of I. -pelvic, pertaining conjointly to the 

 ilium and the pelvis. I.-p. Abscess, suppuration 

 sometimes occurring over the iliacus muscle during 

 labor, and commonly due to the laceration of mus- 

 cular fibers. I. -perineal, relating to the ilium and 

 the perineal region. I.-polymelius, a monstrosity 

 with supernumerary limbs attached to the ilium L- 

 psoas, pertaining conjointly to the ilium and the 

 loins. L-p. Muscle. See Muscles, Table of. L- 

 pubic, relating to both ilium and pubes. I.-spinal, 

 relating to the ilium and the spinal column. L- 

 tibial, pertaining to or connecting the ilium and the 

 tibia. I.-t. Band, a thickened portion of the fascia 

 lata extending from the outer tuberosity of the tibia 

 to the iliac crest. I. -trochanteric, pertaining to the 

 ileum and a trochanter. 



Ilium (il'-e-um) [L.]. The upper part of the osinno- 

 minatum. The haunch-bone. 



Ilixanthin (il-iks-an'-thin) [ilex, holly ; i-avdoc, yellow], 

 C 17 H a O n . A yellow crystalline coloring-matter found 

 in holly. The crystals melt at 198 C, and are soluble 

 in hot water and alcohol. 



Ill (if) [ME., ille,i\Y). Sick ; diseased ; unwell. 



Illacrimation (il-lak-rim-a'-shun) [illacrimatio ; in, on ; 

 lacrima, a tear]. Same as Epiphora. 



Illaqueation (fl-lak-we-a'-shun) [illaqueare, to en- 

 snare]. A method of changing the direction of mis- 

 placed cilia, by withdrawing them, by a noose, through 

 an opening in the adjacent tissue of the lid. 



Illegitimacy (il-e-jif -im-a-se) [in, not ; legilimus, ac- 

 cording to law]. The condition of being unlawful, 

 or not legitimate. 



Illegitimate (il-e-jit f -im-at) [/a, not; legilimus, accord- 

 ing to law]. Not in accordance with statutory law. 

 I. Child, one bom out of lawful wedlock ; a bastard. 



Illequation (il-e-kwa' -shun). See Illaqueation. 



Illicium (il-is'-e-um) [illicere, to entice]. Star Anise. 

 The fruit of Illicium anisatum, with properties due to 

 a volatile oil identical with oil of anise. Iilicium is 

 properly the name of a genus of magnoliaceous trees 

 and shrubs. I. floridanum, of the Gulf States, has 

 poisonous leaves. I. religiosum, of Asia, is said to 

 be highly poisonous. I. verum, is said to yield the 

 star anise of commerce. Unof 



Illness (il'-nes) [ME., tile, ill]. Sickness; disease; 

 an attack of disease. 



Illumination il-oo-min-a' -shun) [illuminare, to make 

 light]. A light produced by a luminous body, and 

 reflected by surrounding objects. In photometry, the 

 unit of intensity of illumination is that given by a 

 standard candle at a distance of one foot. I.. Dark- 

 ground, in microscopsy, a condition in which the 

 object appears self-luminous on a dark back -ground. 

 This occurs when the rays of light are too oblique to 

 enter the front lens of the objective, except such as 



