threshold limit value
The maximum concentration of a chemical allowable for repeated exposure without producing adverse health effects.
The Value of Signs: Saussure’s rebuttal
We’ve reached the final installment of our series on Ferdinand de Saussure and the scintillating study of semiology. In our last post we left our friend Saussure in a rather unflattering light, when we explored the first scientific evidence against his hypothesis: that the relationship between the sign (a word) and the signified (the concept a word represents) might not be as arbitrary as Saussure …
Are Scrabble tile values in need of an overhaul?
Invented by out-of-work architect Alfred Butts during the Great Depression, Scrabble is a staple of word lovers’ lives. The popularity of this beloved game took off in the mid-1950s and has been an essential part of the canon of classic board games ever since. To determine Scrabble’s tile values, Alfred Butts carefully analyzed letter frequency in various periodicals, including the front page of the New York …
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.