palpable
     adj 1: capable of being perceived by the senses or the mind;
            especially capable of being handled or touched or
            felt; "a barely palpable dust"; "felt sudden anger in
            a palpable wave"; "the air was warm and
            close--palpable as cotton" [syn: {tangible}] [ant: {impalpable}]
     2: can be felt by palpation; "a palpable tumor"
Source: WordNet® 2.0