all-

1.
variant of allo- before a vowel:
allonym.
British Dictionary definitions for all-

all-

combining form
1.
a variant of allo-

allo-

combining form
1.
indicating difference, variation, or opposition: allopathy, allomorph, allophone, allonym
Word Origin
from Greek allos other, different
all- in Medicine

all- pref.
Variant of allo-.