There are 2 main definitions of -gram in English:

-gram1

Syllabification: -gram

combining form

In nouns denoting something written or recorded (especially in a certain way): cryptogram heliogram

Origin

from Greek gramma 'thing written, letter of the alphabet', from graphein 'write'.

Definition of -gram in:

There are 2 main definitions of -gram in English:

-gram2

Syllabification: -gram

combining form

Origin

on the pattern of telegram.

Definition of -gram in: