scler-

1.
variant of sclero- before a vowel:
sclerenchyma.
British Dictionary definitions for scler-

sclero-

combining form
1.
indicating hardness: sclerosis
2.
of or relating to the sclera: sclerotomy
Word Origin
from Greek sklēros hard
scler- in Medicine

scler- pref.
Variant of sclero-.