Prescription

(pre-skrip' -shun). A formula written by the physician to the dispenser of medicines, designadng the substances to be employed in a mixture or preparation. P. -blank, a square or rectangular slip of paper, usually bearing the physician's name, residence, and office hours, and the symbol R, and upon which the prescription is written. P. -book, a book in which pre scrip dons are pasted for future reference. P. -file, a contrivance for holding prescriptions. P. -gla :, a graduated gla ve el for administering medicines;, a spectacle gla made according to an oculist's prescription.