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Louis period styles

(Encyclopedia)Louis period styles, 1610–1793, succession of modes of interior decoration and architecture that established France as a leading influence in the decorative arts. The restraint of the later Louis ...

period, in grammar

(Encyclopedia)period: see punctuation.

period, in physics

(Encyclopedia)period, in physics: see harmonic motion; wave. ...

Paleozoic era

(Encyclopedia)Paleozoic era pāˌlēəzōˈĭk [key], a major division (era) of geologic time (see Geologic Timescale, tablegeologic timescale, table) occurring between 570 to 240 million years ago. It is subdivide...

Priapulida

(Encyclopedia)Priapulida, phylum consisting of 17 species of predatory, unsegmented marine worms that live in the sand and mud at the sea bottom. The largest are 4 to 6 in. (10–17 cm) long, but the majority of sp...

Geologic Timescale (table)

(Encyclopedia)Geologic Timescale 1 Not an era but the time preceding the Cambrian. ...

period, in geologic time

(Encyclopedia)period, unit of time on the geologic timescale. Periods are shorter than an era and longer than an epoch. Periods are of variable length, generally lasting tens of millions of years, with characterist...

Conwy

(Encyclopedia)Conwy, formerly Conway, town , Conwy, N Wales, at the mouth of the Conwy (Conway) River. Conwy is a picturesque tourist town with several notable old st...

Sedgwick, Adam

(Encyclopedia)Sedgwick, Adam, 1785–1873, English geologist. He was a professor at Cambridge from 1818. His most important work was a study, made with R. I. Murchison, of the rock formation of Devonshire, which th...

Dee, river, Wales

(Encyclopedia)Dee, Welsh Dyfrdwy, river, c.70 mi (110 km) long, rising in the Cambrian Mts., Gwynedd, NW Wales, and flowing NE through Llyn Tegid (Bala Lake), then meandering through a picturesque course NE, N, and...