Membrane, Riffel- 



IS? 



Messer, Erdbeben- 



diaphragm with curve proÄle, 

 curvilinear c. , para-curve. 

 Riffel- pleated diaphragm (of 

 loudspeaker), d. with pleated 

 corrugations. Schirm- screened 

 diaphragm (of microphone). 

 Sektor- (non-rigid) sector dia- 

 phragm, sectorial cone. 



Membraneinspannung suspension of 

 diaphragm. 



membranloses Mil<rophon diaphragm- 

 less microphone, cathodophone. 



Membranscnwingampl itude excursion 

 amplitude of diaphragm. 



Mengeeinheit unit of quantity. 



Mengen-bestimmung quantitative de- 

 termination, q. analysis, 

 -Verhältnis quantitative rela- 

 tionship, proportion (of in- 

 gredients), q. composition. 



Meniskuskante meniscus edge. 



menschlichte Stimme, Lautstärke- 

 verhältnis human voice intensity 

 range. 



Mensur measure (string instruments), 

 scale (organ); measuring vessel; 

 measuring, mensuration. 



Merkatorkarte Mercator chart. 



Merkatorkarten Projekt ion Mercator 

 projection, cylindrical p. , 

 crthomorphic p. 



merkbar perceptible, noticeable, ap- 

 preciable. 



Merk-mal characteristic feature, c. 

 object (of an invention), c. mark, 

 sign, indicator, index, criterion, 

 -punkt index point, fiducial p., 

 reference p., point de repere (in 

 Baudot apparatus), bench mark. 



Mesonen-bahnende mesotron track end. 

 -zerfall meson decay. 



Mesotrontheor ie meson theory, t. of 

 mesotrons (also known as heavy 

 electrons, barytrons, dynatrons, 

 penetrons, x particles, etc.) 



Messbereich measuring range, meas- 

 urement r., indication or read- 

 ing r. 



Messer (s.a. Anzeiger, Melder, 

 Messgerät, Messung, Meter, Probe, 

 Prüfung, Zähler) measurer, meter y 



measuring instrument or device; 

 knife, cutter, blade. Abklingzeit- 

 flucrometer. Abschleif- grinding 

 blade, g. knife. Abtrift- drift 

 meter. Augen- ophthalmometer, 

 optometer. Augenabstand- inter- 

 pupillary distance gage. Augen- 

 brechungs- skiascope, retinoscope. 

 Ausdehnungs- dilatometer, ex- 

 tensometer. Basisentfernungs- 

 base range finder. Beben- 

 seismometer, seismograph. 

 Bel euchtungs( stärke)- illumina- 

 tion meter, i. photometer, il- 

 luminometer. Belichtungs- 

 exposure meter (in sound record- 

 ing, etc.), brightness m. , tur- 

 bidity m. Beschleunigungs- 

 accelerometer. Blutfarbe- 

 plethysmograph (tests blood flow), 

 electroarteriograph. Brand- 

 pyrometer. Brechungs- refractome- 

 ter. Brennweiten- focometer. 

 Dampf dichte- dasymeter. Dampf- 

 (druck)- steam gage, manometer, 

 tensimeter. Dampfdruck-, 

 osmotischer osmometer. Dämpfungs- 

 loss or transmission (efficiency) 

 measuring device, decremeter 

 (measures logarithmic decrement or 

 damping of circuits). Deckkraft- 

 cryptometer (measures concealing 

 power of paint). Dehnbarke its-, 

 Dehnungs- ductilimeter, dilatome- 

 ter, extensoroeter. Dichte-, 

 photographischer (photo-) 

 densitometer. Dicken- thickness 

 gage, calipers. Dosis- dosimeter, 

 dosage m. , intensimeter. Druck- 

 piezometer, liquid manometer, 

 fluid m., pressure gage. Druck-, 

 osmotischer osmometer. Druck- und 

 Gefrierpunkt- manocryometer. 

 Dunst- atmometer. Durchl ässigkeits- 

 transmissometer (for semi-trans- 

 parent media). Elastizitäts- 

 elasmometer (measuring Young's 

 modulus), torsometer. Energie- 

 ergometer. Entfernungs- range 

 finder, distance meter. Erdbeben- 

 seismometer, seismograph (when 



