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One who studies or expounds the laws of light.

The doctrine or science of light, explaining its nature and phenomena; optics.

Luminescent by exposure to light waves. -- Pho`to*lu`mi*nes"cence (#), n.

An order of fresh-water Bryozoa in which the tentacles are arranged on a horseshoe-shaped lophophore, and the mouth is covered by an epistome. Called also Lophopoda, and hippocrepians.

Of or pertaining to the Phylactolæma.

Same as Phylactolæma.

A genus of herbaceous plants, some of them having berries which abound in intensely red juice; poke, or pokeweed.

An old name for a fossil plant.

One versed in phytolithology; a paleobotanist.

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

Of or pertaining to phytology; botanical.

One skilled in phytology; a writer on plants; a botanist. Evelyn.

The science of plants; a description of the kinds and properties of plants; botany. Sir T. Browne.

- now of many patterns, and bearing a great variety of names. See Illust. of Revolver. Pistol carbine, a firearm with a removable but- piece, and thus capable of being used either as a pistol or a carbine. -- Pistol pipe (Metal.), a pipe in which the blast for a furnace is heated, resembling a pistol in form. -- Pist…

A pistol shot.

on, or about $3.90, and in Germany and Italy nearly the same. There was an old Italian pistole worth about $5.40.

One who uses a pistol. [R.] Carlyle.

A small pistol. Donne. Beau. & Fl.

The science which treats of wealth.

Of or pertaining to pneumatology.