(sociolinguistics, language planning) acronym of Mother-Tongue Medium.; a medium in which the native language of the pouplation is used, such as in education or in writing.

plural of non-self

(pharmacology) A drug that selectively blocks D₂, D₃, D₄, and D₅ dopamine receptors in the brain.

(marketing) A resistance on the part of consumers toward adopting or using a particular product.