INSTIPULATE 



Instipulate (instip 1 -u-ldt) [in, without ; stipula, a 



stalk]. In biology, without stipules. 

 Institute (in'stit-ut) [instituere, to set up]. A state- 

 ment of principles. Also, any establishment for the 

 statement or dissemination of principles. Institutes 

 of Medicine, the explanation or philosophy of the 

 laws of the science of medicine, physiology, pathol- 

 therapeutics, and hygiene, or the general and 

 lementary principles of the same. The term is used 

 metimes as a synonym of physiology. 



ment (in'stru-ment) [instrumentum ; instruere, 



build]. Any mechanical tool or device used in 



operation or treatment. I., Exploring, for examin- 



teeth to ascertain the work necessary to be done ; 



ore especially for determining the presence of caries 



f the teeth. 



trumentarium (instru-men-ta'-re-um) [L.]. A 

 upply or collection of surgical, dental, or other in- 



ments. 

 trumentation (instru-men-ta' 'shun) [instrumen- 

 m, an instrument] . The care and management of a 

 rgeon's instruments. 



uccation (insuk-a'shun) [in, into ; succus, juice], 

 he steeping of a drug for a considerable time in water 

 fore using it in any pharmaceutic process, 

 ufnciency (insuf-fish' '-ense) [insufficientia ; in, 

 ot ; sub, under; facere, to make]. Incapacity of 

 ormal action, on account of some deficiency, as of 

 ze ; the quality of not being sufficient for a special 

 ction or duty. In ophthalmology, a disturbance of 

 uilibrium of the ocular muscles, that is overcome by 

 e effort of binocular vision, and so does not produce 

 bismus. It is also called latent or dynamic squint. 

 Aortic. See Endocarditis. I. of the Cardiac 

 alves, imperfect closure, permitting regurgitation. 

 I. of the Externi, or esophoria ; the internal recti 

 ocular muscles are more powerful than the externi, or 

 more accurately, the power of adduction, or conver- 

 gence, is excessive. I. of the Interni, or exophoria ; 

 the external recti are predominant or the power of ad- 

 duction is subnormal. I. of Muscles, Active, a phe- 

 omenonof amuscle acting on two or more joints when 

 he joints over which it passes are so changed that it 

 nnot contract actively any further than to the extent of 

 e shortening from which it begins to be active. I. of 

 uscles, Passive, the analogue of the phenomena 

 f active insufficiency whereby motion of the part is pre- 

 ented from the position of the joint, the muscle being 

 oo short to act under such circumstances. I. of the 

 cular Muscles, heterophoria, or unbalance ; high 

 egrees result in strabismus, diplopia, asthenopia, 

 tc. I., Mitral. See Endocarditis. I., Pulmon- 

 See Endocarditis. I., Tricuspid. See Edno- 

 'rditis. 



ufflation (insuf-fla' shun\ \insufflare ; in, in; 



vfflare, to puff]. The blowing of any finely divided 



ubstance upon a surface or into a cavity, or the filling 



f any cavity with air, gas, or vapor. 



ufflator (in / suf-/a-tor) [in, in ; sujfflare, to blow]. 



small instrument for blowing fine powders into a 



vity or on a surface. Also, one for blownng air into 



e lungs. 



ula (in'su-lah) [L.]. I. In anatomy, the island of 

 eil. 2. Any detached part or exclave of an organ. 



A blood-islet, or island. See Island. 

 ular (in'su-lar) [insula, an island]. Isolated in 

 condition ; also, pertaining to the Island of Reil. I. 

 Sclerosis, Disseminated, Cerebrospinal, or Multiple 

 Sclerosis. A disease characterized by scattered islets 



I of sclerosis in the brain and cord. It is called sclerose 

 en plaques disseminees by the French, and multiple 

 sclerosis by the Germans. It is distinctly a disease of 



617 INTENSITY 



early adult life, and is of about equal frequency in the 

 two sexes. The causes are obscure. The disease has 

 been observed to follow infectious diseases, exposure 

 to wet and cold, and traumatism. In some cases a 

 neuropathic predisposition has been present. The 

 symptoms vary according to the situation of the islets ; 

 the most common are motor derangement, a jerky 

 tremor, paresis or paralysis, and ocular symptoms, as 

 diplopia and amblyopia, with nystagmus, and occasion- 

 ally atrophy of the discs. The tremor is ordinarily 

 absent during repose, but appears on attempted move- 

 ment, and is hence designated, intention-tremor. The 

 speech is a characteristic one, very slow, each syllable 

 being pronounced with difficulty ; hence it is said to 

 be of a " scanning ' ' nature. Vertigo is also a very fre- 

 quent symptom, and in the advanced stage the mind 

 undergoes deterioration, and dementia may make its 

 appearance. The knee-jerks are exaggerated and ankle- 

 clonus is present. The lesions of the disease are small 

 grayish or yellow gelatinous patches scattered through- 

 out the brain and in both the white and gray matter 

 of the cord. 



Insulate (in'su-ldt) [insulare, to make like an island]. 

 To isolate or separate from surroundings. In elec- 

 tricity, to surround a conductor with a non-conducting 

 substance or with one having an exceedingly high 

 degree of resistance. 



Insulation (insu-la'shun) [insulatio ; insulare, to 

 make like an island]. The process of insulating ; the 

 state or quality of being insulated. 



Insult (in' suit) [insultus ; in, upon; saltare, to 

 leap]. The beginning of a paroxysm or of an 

 attack of a disease. I., Apoplectic, an apoplectic 

 stroke. 



Insusceptibility (insussep-tib-il' -it-e) [insusceptibilis, 

 not susceptible]. Absence of contagious quality; it 

 differs from Immunity in being applied to the disease 

 instead of the person. 



Integer (in'-te-ger) [L.]. An entity. I., Fissural, 

 a term designating a fissure of the brain, which 

 is independent in some species or individuals, 

 and deepest at or about the middle of its length, 

 corresponding nearly with the place of first appear- 

 ance. 



Integral (in' -ie-gral) [integer, whole]. Entire; es- 

 sential. 



Integration (in-te-gra' shun) [integratio, a renewing]. 

 The blending of separate parts into one, as in the 

 embryo. 



Integrity (in-teg'-rit-e) [infegritus ; integer, whole]. 

 Wholeness ; entirety. Also, virginity. 



Integument (in-teg / -u-ment)[integumentum : in, upon; 

 tegere. to cover]. A covering, especially the skin. 

 In botany, the envelop surrounding the ovule of 

 phanerogamous plants. I., Fetal, the fetal mem- 

 branes. 



Intellect (in'-tel-eht) [intellectus ; [inter, between; 

 legere, to choose]. The mind or reasoning power. 

 I., Deranged. See Insanity. 



Intelligence (in-tel' -ij-ence) [intelligentia, intelligence]. 

 The understanding that comes from the perception of 

 qualities and attributes of the objective world, and is 

 manifested in the purposive employment of means to 

 attain an end. 



Intemperance (in-tem' -per-ans) [in, not ; temperan- 

 tia, mildness]. Want of moderation ; immoderate 

 indulgence, especially with reference to alcoholic 

 liquors. 



Intensity (in-ten'sit-e) [intensus, stretched, strung]. 

 Concentration of energy or activity. Also, a high 

 degree of energy or power. I., Specific. See Spe- 

 cific. 



