MICROCYST 



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MICROMETRY 



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Microcyst (mi'-kro-sist) [jiinpog, small; Kvarog, cyst]. 



I. A cyst of diminutive size, or one derived from 



another. 2. The resting swarm-spore of certain fungi. 



Microcyte (mi' '- kro-sit) [uinpog, small ; Kvrog, cell]. A 



small red blood-corpuscle. 

 Microcythemia (mi-kro-si-the 1 '-me-ah) \jwip6q, small ; 

 Ki'Toc, cell ; aifia, blood]. Abnormal smallness of the 

 red corpuscles of the blood, caused by certain poisons 

 and diseases. 



icrocytosis (mi-kro-si-to'-sis). Same as Microcythemia. 

 icrodactylia (mi-kro-dak-tW '-e-ah) [fimpog, small ; 

 danTv?.og, finger]. Abnormal smallness of the fingers. 

 Microdentism \mi-kro-den' -tizm). See Aficrodontism. 

 Microdont (mi'-kro-dont) \juKpog, small; oSovg, tooth] . 

 Having small teeth. See Macrodont. 

 icrodontism (mi-kro-don' -tizm) [uinp6g, small ; 66oiig, 

 tooth]. Abnormal smallness of the teeth, 

 icroetiologic (mi'-kro-e-te-o-loj'-ik) \jwipog, small; 

 atria, cause ; Mryog, science]. Connected with the 

 study of the causation of microorganismal diseases, 

 icrofarad (mi-kro-far'-ad). See Farad and Electric 

 Units. * 



icroform (mi' -kro- form) \jiiKpog, small ; forma, form]. 

 A microscopic object. 



icrogenesis (mi-kro-jen' -es-is) [fiiicpog, small ; yeveacg, 

 origin]. Abnormally small development of a part, 

 icrogenia (mi-kro-je' '-ne-ah) [pj.Kpog, small ; yeveiov, 

 chin]. Abnormal or congenital smallness of the chin, 

 icrogerm (mi'- kro -jerm) [uiKpoq, small; germen, 

 seed, sprig]. A microbe ; more properly, the spore 

 of a microorganism. 



icroglossia (mi-kro-glos'-e-ah)\jiinp6g, small ; ylcxjoa, 

 tongue]. Abnormal smallness of the tongue, 

 icrognathia (mi-krog-na'-the-ah) \junp6g, small ; 

 yvadog, jaw]. Abnormal smallness of the jaws, espe- 

 cially of the lower jaw. 



icrogonidium (mi-kro-go-nid' -e-um) [piupdg, small ; 

 yovf], generation, seed: //. , Microgonidia\ In biol- 

 ogy, a relatively small-sized gonidium. 

 icrogram (mi'-kro-gram) [pinpog, small ; ypdfifia, a 

 Greek weight ; gram]. A millionth part of a gram, 

 icrograph (mi'-kro-graf) \jiinp6g, small ; ypd^ieiv, to 

 delineate]. A device for enabling one to draw 

 sketches on a very small scale. 



icrography (mi-krog' -ra-fe) \jiinp6g, small ; ypafyeiv, 

 to write]. A description of bodies that are studied 

 under the microscope. See Photo- micrography. 

 Microgyria (mi-kro-ji'-re-ah) \jiinp6c, small ; yvpog, 



gyrus]. Smallness of the convolutions of the brain. 

 Microhistology {mi-kro-his-toF -o-je). Synonym of 



Micristology . 

 Microhm (mi'-krom) [uinpoc, small; ohm~\. The mil- 

 lionth part of an ohm. 

 Microkinesis i mi-kro-kin-e' -sis) \_piKpoc, small ; aivrjaig, 

 motion]. A minor movement without definite pur- 

 pose, especially in early infantile life; in children, 

 any spontaneous act; in adults, fidgety movement, 

 restlessness, as in sleep ; post-epileptic action. 

 Microlentia (mi-kro-len'-te-ah) [pinpog, small ; lens, 

 lens]. The state of having an abnormally small crys- 

 talline lens. 

 Microliter (mi' '- kro - le - ler) [pinpdg, small; Atrpa, a 



liter]. The millionth part of a liter. 

 Microlith (mi' -kro-lith) [pinpog, small; /Jdog, stone]. 



A microscopic calculus. 

 Micrology (mi - krol ' - o • je) [pinpog, small; Adyog, a 

 treatise]. A treatise on minute objects, especially 

 microscopic objects. 

 Micromania (mi-kro-ma' -ne-ah) [pinpog, small ; pavia, 

 madness]. Delusion of belittlement ; the impression 

 that one's body, or some part of it, is or has become 

 small, or that all objects around one are small. 



Micromazia (mi-kro-ma' -ze-ah) \jiiKpog, small ; pa£6g, 

 breast]. Abnormal smallness of the mammae. 



Micromelia (mi-kro-me' ' -le-ah) [uiupdg, small ; fieAog, 

 limb]. Abnormal smallness of the limbs. 



Micromelus (mi-krom' -el-us) [pinpdg, small ; petog, 

 limb]. A single autositic monster of the species 

 ectromelus, characterized by the presence of limbs 

 that are normal in form but abnormally small. 



Micromere (mi'- kro - mer) [uixpog, small ; pepog, a 

 part]. In biology, one of the smaller blastomeres 

 formed in the segmentation of certain ova ; specifically, 

 the " animal cell " of Rabl. 



Micromeria (mi-kro-me' -re-ah) [uiKpog, small ; fiepog, 

 a part]. A genus of labiate herbs. M. douglassii, 

 the Verba buena of the Pacific U. S. , is a fragrant 

 aromatic stimulant and anthelmintic. Unof. 



Micromerology (mi-kro-me-rol' -o-je) \jiiKpog, small ; 

 fiepog, part ; Aoyog, science]. The science of anatomic 

 segments. 



Micrometer (mi - krom'- et - er) \jiiKp6g, small ; u'erpov, 

 measure]. An instrument designed for measuring 

 exceedingly small dimensions. M., Eye-piece, a 

 micrometer to be used with the eye-piece or ocular. 

 M., Object or Objective. See M., Stage. M., 

 Ocular, a micrometer to be used with the ocular. 

 See Ocular. M., Stage, a finely divided scale or rule 

 on glass or metal for determining the magnification of 

 a compound microscope. 



Micrometric (mi-krom-et' -rik) \jiiKp6g, small ; perpov. 

 measure]. Pertaining to the micrometer ; measuring 

 very minute distances, surfaces, or objects, as a micro- 

 metric screw, or hematoscope. 



Micrometry (mi-krom' -et- re) [uinpog, small ; pe-pov, 

 measure]. The determination of the size of objects 

 by the aid of a micrometer. M., Methods of Ocu- 

 lar, are as follows : I . By finding the value of a 

 division of the ocular micrometer for each optic com- 

 bination and tube-length used, and employing this 

 valuation as a multiplier. Thus, if with a given optic 

 combination and tube-length it required five divisions 

 on the ocular micrometer to include the image of T 2 ff 

 mm. of the stage micrometer, then one space on the 

 ocular would include i of ^ mm., or ? x - mm.; and 

 the size of any unknown object would be obtained by 

 multiplying the number of divisions on the ocular 

 micrometer required to include its image by the value 

 of one space . 2. By finding the number of divisions on 

 the ocular micrometer required to include the image of 

 an entire millimeter of the stage micrometer, and using 

 this number as a divisor. If five divisions of the ocular 

 micrometer are required to include the image of T 2 5 mm. 

 on the stage micrometer, then it would require 5 -*- ts 

 = 25 divisions on the ocular micrometer to include a 

 whole mm. on the stage micrometer ; then the number 

 of divisions of the ocular micrometer required to measure 

 an object divided by 25 would give the actual size of the 

 object in millimeters or in a fraction of a millimeter. 

 3. By having the ocular micrometer ruled in milli- 

 meters and divisions of a millimeter, and then getting 

 the size of the real image in millimeters. In employ- 

 ing this method a stage micrometer is used as an object, 

 and the size of the image of one or more divisions is 

 measured by the ocular micrometer. If the stage 

 micrometer is ruled in yV and y^ mm., and the ocular 

 micrometer is ruled in millimeters and y 1 ^ mm. , take y 2 ^ 

 mm. on the stage micrometer as the object, and suppose 

 it to require 10 of the y 1 ^ spaces, or 1 mm., to measure 

 the real image ; then the real image must be magnified 

 1§ "*- t v = 5 diameters. M., Methods of Stage : 

 I. By mounting the object upon a stage micrometer, 

 and directly reading off the number of spaces covered 

 by the object. 2. Divide the size of the image by the 



