quadr-

1.
variant of quadri- before a vowel:
quadrennial.
British Dictionary definitions for quadr-

quadr-

combining form
1.
a variant of quadri-

quadri-

combining form
1.
four: quadrilateral, quadrilingual, quadrisyllabic
Word Origin
from Latin; compare quattuor four
quadr- in Medicine

quadr- pref.
Variant of quadri-.