संस्‍कृतशब्‍दकोशः

अमर्मन्

जो मर्मस्थान न हो‚ मर्मरहित

not a vital spot, invulnerable

Monier–Williams

अमर्मन् — {a-marmán} mfn. having no vital part, invulnerable RV. iii, 32, 4 ; v, 32, 5 and vi, 26, 3##({a}), n. not a vital part of the body Suśr