maximum acceptable toxicant concentration
[mach] /mætʃ/ noun 1. a slender piece of wood, cardboard, or other flammable material tipped with a chemical substance that produces fire when rubbed on a rough or chemically prepared surface. 2. a wick, cord, or the like, prepared to burn at an even rate, used to fire cannon, gunpowder, etc. [mach] /mætʃ/ noun 1. […]
[mach] /mætʃ/ noun 1. a person or thing that equals or resembles another in some respect. 2. a person or thing able to cope with another as an equal: to meet one’s match. 3. a person or thing that is an exact counterpart of another. 4. a corresponding, suitably associated, or harmonious pair: The blue […]
[mach-bawrd, -bohrd] /ˈmætʃˌbɔrd, -ˌboʊrd/ noun 1. a having a tongue formed on one edge and a groove of the same dimensions cut into the other, used with similar to compose floors, dados, etc. /ˈmætʃˌbɔːd/ noun 1. a long thin board with a tongue along one edge and a corresponding groove along the other, used with […]
[mach-bawr-ding, -bohr-] /ˈmætʃˌbɔr dɪŋ, -ˌboʊr-/ noun 1. a construction of . 2. a quantity of .