Term: subclinical absence: a transient impairment of cortical function demonstrable only by 3-per-second brainwave spikes
Broader: absence: the occurrence of an abrupt, transient loss or impairment of consciousness (which is not subsequently remembered), sometimes with light twitching, fluttering eyelids, etc.; common in petit mal epilepsy | Unrelated: head nurse: the person in charge of nursing in a medical institution