Definition of retentions:
(n) :
The act of retaining or something retained.
(n) :
The act or power of remembering things.
(n) :
Memory; what is retained in the mind.
(n) :
(medicine) The involuntary withholding of urine and faeces.
(n) :
(medicine) The length of time a patient remains in treatment.
(n) :
(law) The right to withhold a debt, or of retaining property until a debt due to the person claiming the right is duly paid; a lien.