9). In the case of K + and Cl - , the electrical and concentration gradients of molecules work against each other. K + is attracted toward the inside of a cell because of the inside-negative membrane potential, but the moleculeâs concentration gradient works in the other direction.
Directory Definition. The term directory is used in a computer software context to refer to what appears to the user to be a container or folder1 that can hold files and other directories. A file is a named collection of related data that appears to the user as a single, contiguous block of information and that is retained in storage.
Define directory. directory synonyms, directory pronunciation, directory translation, English dictionary definition of directory. n. pl. diÂ·recÂ·toÂ·ries 1. A book containing an alphabetical or classified listing of names, addresses, and other data, such as telephone numbers, of specific...