RAM noun 6phrases 1 noun6 •Acronym of random-access memory. •Acronym of relative atomic mass; sometimes styled r.a.m.. •Acronym of radar-absorbent material, a material which absorbs radar. •Acronym of random-access machine. •Acronym of responsibility assignment matrix. •Acronym of reliability availability maintainability. Phrases with RAM ram something down someone's throatTo shove something down someone's throat.