Adherence to (compliance with) drug treatment is important. However, only about half the people who leave a doctor's office with a prescription take the drug as directed. Among the many reasons people give for not adhering to drug treatment, forgetfulness is the most common.
Definition of periodical. 1  1 : periodic 1. 2  2a : published with a fixed interval between the issues or numbersb : published in, characteristic of, or connected with a periodical.
Wiktionary(0.00 / 0 votes)Rate this definition: bimonthly(Noun) Something (especially something published) that occurs or is done on a bimonthly basis. We have to get the report done. If the boss doesn't get his bimonthly he'll scream. bimonthly(Adverb) once every two months; bimestrially.