|Also called: recurrent fever any of various infectious diseases characterized by recurring fever, caused by the bite of body lice or ticks infected with spirochaetes of the genus Borrelia|
|a chattering or flighty, light-headed person.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
relapsing fever n.
An acute infectious disease caused by a strain of Borrelia transmitted by lice or ticks and marked by recurring febrile attacks lasting about six days and separated from one other by apyretic intervals of about the same length. Also called recurrent fever.