U.S. Relations With El Salvador. More information about El Salvador is available on the El Salvador Page and from other Department of State publications and other sources listed at the end of this fact sheet. u.s.-el salvador relations
lavage. n. 1. (Medicine) med the washing out of a hollow organ by flushing with water.
bronchoalveolar lavage (BAL), procedure for collecting the cellular milieu of the alveoli (for example, microorganisms, types of inflammatory cells) by use of a bronchoscope or other hollow tube through which saline is instilled into distal bronchi and then withdrawn.