Related Words

Anticipated Holding Period: The period of time an individual expects to hold an asset.

Periodontal: Relating to the tissue and bone that supports the tooth (from peri, meaning 'around,' and odont, 'tooth').

Periodontal Disease: The inflammation and infection of gums, ligaments, bone, and other tissues surrounding the teeth. Gingivitis and periodontitis are the two main forms of periodontal disease. Also called gum . . . View Full Definition

Periodization: A method of organizing a strength training workout program into several periods, each lasting about four weeks. Each phase has a different emphasis.

Periodontal Pocket: An abnormal deepening of the gingival crevice. It is caused when disease and infection destroy the ligament that attaches the gum to the tooth and the underlying bone.

Periodicity: The level of detail in terms of time at which data is forecast or reported, specified as months, quarters, or years.

Periodical Lunation: Term applied to the transiting Moon's monthly return to the exact position occupied in a natal horoscope. See also lunar period.

Periodontitis: Inflammation of the supporting structures of the tooth, including the gum, the periodontal ligament, and the jawbone.

Permian Period: The last geologic time period of the Paleozoic Era, noted for the greatest mass extinction in earth history, when nearly 96% of species died out.

Photoperiodism: The ability of certain plants to sense the relative amounts of light and dark in a 24-hour period; controls the onset of fiowering in many plants.