The term MEDICINAL UNIT refers to the amount of a medication that is prescribed for a patient. The crossword solutions for this term are DOSE (4 letters), PILL (4 letters), and DOSAGE (6 letters). DOSE refers to the amount of a medication that is taken at one time, while PILL is a form of medication that is taken orally. DOSAGE is the total amount of a medication that is prescribed for a patient over a certain period of time.