Definify.com
Webster 1913 Edition
Petaurist
Pe-tau′rist
(pē̍-ta̤′rĭst)
, Noun.
 [L. 
petaurista 
a ropedancer, Gr. πεταυριστής
, fr. πεταυρίζειν 
to dance on a rope, fr. πέταυρον 
a pole, a stage for ropedancers: cf. F. pétauriste
.] (Zool.) 
Any flying marsupial of the genera 
Petaurus
, Phalangista
, Acrobata
, and allied genera. See Flying mouse
, under Flying
, and Phalangister
.