Rh-neg·a·tive /ˌɑrˌeʧˈnɛgətɪv/
Rh-neg·a·tive /ˌɑrˌeʧˈnɛgətɪv/ 形容詞
rh-negative adj : of persons (or their blood) lacking the Rh factor present in their red blood cells [ant: rh-positive]