|1.||showing uncompromising or inflexible resolve; firm, strict, or authoritarian|
|2.||lacking leniency or clemency; harsh or severe|
|3.||relentless; unyielding: the stern demands of parenthood|
|4.||having an austere or forbidding appearance or nature|
|[Old English styrne; related to Old High German stornēn to alarm, Latin sternāx stubborn, Greek stereos hard]|
German-born scientist and winner of the Nobel Prize for Physics in 1943 for his development of the molecular beam as a tool for studying the characteristics of molecules and for his measurement of the magnetic moment of the proton.
Learn more about Stern, Otto with a free trial on Britannica.com.