1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) a slight amount or degree of difference 2) a weapon that kills or injures civilian as well as military personnel (nuclear and chemical and biological weapons) 3) a doctor's degree in optometry DOWN 1) the cardinal number that is the sum of one and one or a numeral representing this number 2) macular degeneration that is age-related 3) a doctor's degree in dental surgery ** Scroll down for solution. ** Are you sure you want to peek? tad wmd ods