different between alkaline vs metalloid

English

Alternative forms

• alk.

Etymology

First attested in 1677. From alkali, ultimately from Arabic ?????????? (al-qily, “alkali, ashes of the saltwort”), related to ?????? (qal?, “to roast in a pan, fry”).

Pronunciation

• (UK) IPA^(key): /?æl.k?l.a?n/
• (US) enPR: ?l?k?l?n, IPA^(key): /?æl.k?.la?n/

Adjective

alkaline (comparative more alkaline, superlative most alkaline)

1. Of, or relating to an alkali, one of a class of caustic bases.
   • 1913, James Campbell Brown, A History of Chemistry from the Earliest Times, p. 279.

     [Joseph Black's] experiments on magnesia alba, quick lime, and other alkaline substances proved that "fixed air" is given off when limestone is burned, and that the same loss is incurred when it is dissolved in muriatic acid (hydrochloric acid).

2. (chemistry) Having a pH greater than 7.

Synonyms

• (chemistry): basic

Antonyms

• (chemistry): acidic

Derived terms

Related terms

• alkali
• alkaloid

Translations

Noun

alkaline (plural alkalines)

1. An alkaline battery.

Italian

Adjective

alkaline f

1. feminine plural of alkalino

English

Etymology

From metal +? -oid.

Pronunciation

• IPA^(key): /?m?t?l??d/

Noun

metalloid (plural metalloids)

1. (chemistry) An element, such as silicon or germanium, intermediate in properties between that of a metal and a nonmetal; especially one that exhibits the external characteristics of a metal, but behaves chemically more as a nonmetal.
2. (chemistry, obsolete) The metallic base of a fixed alkali, or alkaline earth; applied to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.
   • 1836, Sir Humphry Davy, Memoirs

     By some they [metals of the alkalies] were called metalloids; by some their simple nature was objected to

Translations

Adjective

metalloid (comparative more metalloid, superlative most metalloid)

1. (not comparable) Of or relating to the metalloids.
2. (informal) Characteristic of the metal music genre.
   • 1997, CMJ New Music Monthly (number 43, page 12)

     Graham Massey of 808 State turns a Björkian moan into a vibrating siren and powers his strangely metalloid version of "Army Of Me" with it; the Brodsky String Quartet turns "Hyperballad" into a stately 3-D chess game.

   • 2004, Gene Santoro, Highway 61 Revisited

     It expanded from bleary delay rippling with looped phrases to embrace molten metalloid raunch and blues grit, acoustic guitars and pedal steels.