Mamma (nt.) [Vedic marman, fr. mṛd] soft spot of the body, a vital spot (in the Vedas chiefly between the ribs near the heart), joint. A popular etym. and expln of the word is given at Expos. 132n3 (on DhsA 100). -- J ii.228; iii.209; DhsA 396.

 -- ghaṭṭana hitting a vital spot (of speech, i. e. backbiting. Cp. piṭṭhi -- maŋsika) DhA iv.182. -- chedaka breaking the joints (or ribs), violent (fig. of hard speech) DhA i.75; DhsA 100.