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A salt of periodic acid.

Pertaining to, derived from, or designating, the highest oxygen acid (HIO

Of or pertaining to a period or periods, or to division by periods. The periodicaltimes of all the satellites. Sir J. Herschel.

A magazine or other publication which appears at stated or regular intervals.

One who publishes, or writes for, a periodical.

In a periodical manner.

Periodicity.

The quality or state of being periodical, or regularly recurrent; as, the periodicity in the vital phenomena of plants. Henfrey.

An iodide containing a higher proportion of iodine than any other iodide of the same substance or series.

Surrounding the teeth.

A table or other means for calculating the periodical functions of women. Dunglison.

Those who live on the same parallel of latitude but on opposite meridians, so that it is noon in one place when it is midnight in the other. Compare Antoeci.

The external smooth horny layer of the hoof of the horse and allied animals.

Of or pertaining to the periople; connected with the periople.

Situated around bone; of or pertaining to the periosteum.

The membrane of fibrous connective tissue which closely invests all bones except at the articular surfaces.

Inflammation of the periosteum.

A chitinous membrane covering the exterior of many shells; -- called also epidermis.

Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule. -- n.

A peripatetic. [Obs.]