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Fluorine. [Written also phthor.]

One versed in phytolithology; a paleobotanist.

The branch of science which treats of fossil plants; -- usually called paleobotany, sometimes paleophytology.

One skilled in diseases of plants.

The science of diseases to which plants are liable.

Of or pertaining to the Plectognathi.

State of being overfull; excess; superabundance. He labors under a plethora of wit and imagination. Jeffrey.

Plethoric. [Obs.] Johnson.

Haeving a full habit of body; characterized by plethora or excess of blood; as, a plethoric constitution; -- used also metaphorically. "Plethoric phrases." Sydney Smith. "Plethoric fullness of thought." De Quincey.

Plethoric. [R.] -- Ple*thor"ic*al*ly, adv. Burke.

Plethora. Jer. Taylor.

A species of tetanus, in which the body is curved laterally. Quain. Dunglison.

See Pneumothorax.

n in which air or other gas is present in the cavity of the chest; -- called also pneumatothorax.

An embrasure in a ship's side. See 3d Port.

One of the iron hooks to which the port hinges are attached. J. Knowles.

See Portass. [Obs.] Chaucer.

A house established for the convenience of the post, where relays of horses can be obtained.

A circular hole formed in the rocky beds of rivers by the grinding action of stones or gravel whirled round by the water in what was at first a natural depression of the rock.

A written character curved like a pothook; (pl.) a scrawled writing. "I long to be spelling her Arabic scrawls and pothooks." Dryden.