|1.||to make or become hard or harder; freeze, stiffen, or set|
|2.||to make or become more hardy, tough, or unfeeling|
|3.||to make or become stronger or firmer: they hardened defences|
|4.||to make or become more resolute or set: hardened in his resolve|
|a. (of prices, a market, etc) to cease to fluctuate|
|b. (of price) to rise higher|
Sullivan Sul·li·van, Harry Stack. 1892-1949.
American psychiatrist who theorized that personality is largely determined by one's interpersonal relations and the assimilation of societal values.
|Eddington (ěd'ĭng-tən) Pronunciation Key
British mathematician, astronomer, and physicist who founded modern astrophysics. He conducted research on the evolution, structure, and motion of stars and was one of the first scientists to promote the theory of relativity. He also wrote a series of scientific books for the layperson.