NOTE: This dictionary is currently only English to Arabic.
Here are the lines from the English to Arabic side that include 'ماما'.
المداخل المُطابِقة في الجهة المُقابِلة من القاموس
WordReference English-Arabic Dictionary © 2017:
Mom nnoun: Refers to person, place, thing, quality, etc.
| informal (address: Mother)||ماما |
| ||Hi, Mom. What's for dinner?|
momma nnoun: Refers to person, place, thing, quality, etc.
| US, informal (mother, mom, mommy)||أم، ماما |
| ||Mama says to leave the light on for Dad.|