MIC- 



192 



MID- 



ovule apex (dot.) ; the aperture in 

 the egg-membrane for admission 

 of spermatozoon ; a pore in the 

 spongin-coat of Sponges for escape 

 of gemmules (zoo). 



micropyle apparatus, raised pro- 

 cesses or porches, sometimes of 

 very elaborate structure, developed 

 round the micropyle of certain 

 insect eggs (zool.). 



microrhabdus (ml'krorab'dus) n. [Gk. 

 mikros, small ; rhabdos, a rod.] 

 A minute monaxon or rod-like 

 spicule (zool.). 



microschizont (inl'kroshl'zont) n. [Gk. 

 mikros, small ; schizein, to cut.] A 

 male schizont of certain Protozoa 

 (zool.). 



microsclere (ml'kroskler) n. [Gk. 

 mikros, small ; skleros, hard.] One 

 of sponge spicules found lying 

 scattered freely in the tissues 

 (zool.). 



microseptum (ml'krosep'tum) n. [Gk. 

 micros, small ; L. septum, parti- 

 tion.] An incomplete mesentery 

 of Zoantharia (zool.). 



microsmatic (ml'krosmat'ik) a. [Gk. 

 mikros, small ; osme, smell.] With 

 feebly-developed sense of smell 

 (Phys.). 



microsome (ml'krosom) n. [Gk. 

 micros, small ; soma, body.] The 

 granule of protoplasm as opposed 

 to the ground-substance (cyt.). 



microsphere (ml'krosfer) n. [Gk. 

 mikros, small ; sphaira, a globe.] 

 The initial chamber of Foramin- 

 ifera when very small (zool.). 



microspheric (mi'krosfgr'ik) a. [Gk. 

 mikros, small ; sphatra, a globe.] 

 Appl. Foraminifera when the initial 

 chamber of the shell is small 

 (zool.). 



microsporangium(mi'krospdran'jium) 

 n. [Gk. mikros, small ; sporos, seed ; 

 anggeion, vessel.] A sporangium 

 bearing a number of microspores 

 (bot.). 



microspore (mlkrospor) n. [Gk. 

 mikros, small ; sporos, seed.] The 

 spore developed in a microspor- 

 angium of heterosporous plants 

 (bot.) ; a smaller anisospore of 

 Sarcodina (zool.). 



microsporophore (ml'krospo'rofor) n. 

 [Gk. micros, small ; sporos, seed ; 



pherein, to bear.] A microspor- 

 angium (dot.). 



microsporophyll (rm'krospo'rofll) n. 

 [Gk. mikros, small ; sporos, seed ; 

 phyllpn, leaf.] A microsporangium- 

 bearing leaf (bot). 



microsporozoite (ml'krospo'rozo'it) n. 

 [Gk. mikros, small ; sporos, seed ; 

 zoon, animal.] A smaller endo- 

 genous sporozoite of Sporozoa(sw/.). 



microstome (mi'krostom) n. [Gk. 

 mikros, small ; stoma, mouth.] A 

 small opening or orifice (zool.). 



microstylospore (ml'krostl'lospor) n. 

 [Gk. mikros, small ; stylos, pillar ; 

 sporos, a seed.] A comparatively 

 small stylospore (dot.). 



microstylous (mi'krostl'lus) a. [Gk. 

 mikros, small ; stylos, pillar.] Hav- 

 ing short styles ; appl. heterostylous 

 flowers (bot.).- 



microtherm (inl'krotherm) n. [Gk. 

 mikros, small ; therme, heat.] A 

 plant of the north temperate zone 

 (bot.). 



microtype (mi'krotlp) n. [Gk. mikros, 

 small ; L. typus, type.] The normal 

 arrangement of mesenteries in 

 Anthozoa (zool.). 



microzooid (mi'kroz5'oid) n. [Gk. 

 mikros, small ; zoon, animal ; eidos, 

 resemblance.] A free-swimming 

 motile ciliated bud of Vorticella 

 and other Protozoa (zool.). 



microzoospore (ml'krozd'ospor) n. 

 [Gk. mikros, small ; zoon, animal ; 

 sporos, seed.] A small planogamete 

 (bot.); a small anisospore of Radio- 

 larians (zool.). 



microzyma (mi'krozl'ma) n. [Gk. 

 mikros, small ; zyme, leaven.] A 

 biophore or idioblast,a hypothetical 

 ultimate unit (biol.). 



microzyme (ml'krozlm) n. [Gk. mikros, 

 small ; zyme, leaven.] A micro- 

 organism of fermenting or decom- 

 posing liquids (phys.). 



mid-body, a cell plate or group of 

 granules in the equatorial region 

 of the spindle in the anaphase of 

 mitosis (cyt.). 



mid-brain, the middle zone of the 

 primitive or embryonic brain ; the 

 mesencephalon of adults, consisting 

 of the cerebral peduncles, the cor- 

 pora quadrigema, and the aque- 

 ductus Sylvii (anat.). 



