The noun RHESUS FACTOR has 1 sense: 1. a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia. Familiarity information: RHESUS FACTOR used as a noun is very rare.Dictionary entry details.â¢ RHESUS FACTOR (noun).. a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia. Familiarity information: RHESUS FACTOR used as a noun is very rare. Dictionary entry details. â¢ RHESUS FACTOR (noun).
TO RETAIN, practice. To engage the services of an attorney or counsellor to manage a cause, at which time it is usual to give him a fee, called the retaining fee. The act by which the attorney is authorized to act in the case is called a retainer. 2.
keep, retain, detain, withhold, reserve mean to hold in one's possession or under one's control. keep may suggest a holding securely in one's possession, custody, or control. retain implies continued keeping, especially against threatened seizure or forced loss.eep, retain, detain, withhold, reserve mean to hold in one's possession or under one's control. keep may suggest a holding securely in one's possession, custody, or control. retain implies continued keeping, especially against threatened seizure or forced loss.