Search Result for "reticular_activating_system":
Wordnet 3.0

NOUN (1)

1. the network in the reticular formation that serves an alerting or arousal function;
[syn: reticular activating system, RAS]



WordNet (r) 3.0 (2006):

reticular activating system
    n 1: the network in the reticular formation that serves an
         alerting or arousal function [syn: reticular activating
         system, RAS]