Mamma \Mam*ma"\, n. [Reduplicated from the infantine word ma, influenced in spelling by L. mamma.]

Mother; -- word of tenderness and familiarity. [Written also mama.]

Tell tales papa and mamma. --Swift.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Mamma \Mam"ma\, n.; pl. Mamm[ae]. [L. mamma breast.]

(Anat.) A glandular organ for secreting milk, characteristic of all mammals, but usually rudimentary in the male; a mammary gland; a breast; under; bag.

Source: Webster's Revised Unabridged Dictionary (1913)