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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

987 words match “PLAT”

Of, pertaining to, or containing, platinum; -- used specifically to designate those compounds in which the element has a higher valence, as contrasted with the platinous compounds; as, platinic chloride (PtCl4).

PLATINICHLORIC a.

Of, pertaining to, or designating, an acid consisting of platinic chloride and hydrochloric acid, and obtained as a brownish red crystalline substance, called platinichloric, or chloroplatinic, acid.

PLATINIFEROUS a.

Yielding platinum; as, platiniferous sand.

PLATINIRIDIUM n.

A natural alloy of platinum and iridium occurring in grayish metallic rounded or cubical grains with platinum.

To cover or combine with platinum.

PLATINOCHLORIC a.

Pertaining to, derived from, or designating, an acid consisting of platinous chloride and hydrochloric acid, called platinochloric, or chloroplatinous, acid.

PLATINOCHLORIDE n.

A double chloride of platinum and some other metal or radical; a salt of platinochloric acid.

PLATINOCYANIC a.

Pertaining to, derived from, or designating, an acid compound of platinous cyanide and hydrocyanic acid. It is obtained as a cinnaber-red crystalline substance.

PLATINOCYANIDE n.

A double cyanide of platinum and some other metal or radical; a salt of platinocyanic acid.

A cathode. [R.]

PLATINOID a. 2 definitions

Resembling platinum.

PLATINOTYPE n. 2 definitions

A permanent photographic picture or print in platinum black.

Of, pertaining to, or containing, platinum; -- used specifically to designate those compounds in which the element has a lower valence, as contrasted with the platinic compounds; as, platinous chloride (PtCl2).

value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric ac…

PLATITUDE n. 2 definitions

taleness of ideas of language. To hammer one golden grain of wit into a sheet of infinite platitude. Motley.

PLATITUDINARIAN n.

One addicted to uttering platitudes, or stale and insipid truisms. "A political platitudinarian." G. Eliot.

PLATITUDINIZE v.

To utter platitudes or truisms.

PLATITUDINOUS a.

Abounding in platitudes; of the nature of platitudes; uttering platitudes. -- Plat`i*tu"di*nous*ness, n.

Flatly. See Plat, a. [Obs.]

Flatness. [Obs.] Palsgrave.