"Columbite" is a word in ENGLISH

columbite ENGLISH
Definition:

A mineral of a black color, submetallic luster, and high
specific specific gravity. It is a niobate (or columbate) of iron and
manganese, containing tantalate of iron; -- first found in New England.

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arsenic ENGLISH

One of the elements, a solid substance resembling a metal in its physical properties, but in its chemical relations ranking …

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ferric ENGLISH

Pertaining to, derived from, or containing iron. Specifically (Chem.), denoting those compounds in which iron has a higher valence than …

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funnel ENGLISH

A passage or avenue for a fluid or flowing substance; specifically, a smoke flue or pipe; the iron chimney of …

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iron ENGLISH

The most common and most useful metallic element, being of almost universal occurrence, usually in the form of an oxide …

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jagger ENGLISH

One who, or that which, jags; specifically: (a) jagging iron used for crimping pies, cakes, etc. (b) A toothed chisel. …

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spanner ENGLISH

An iron instrument having a jaw to fit a nut or the head of a bolt, and used as a …

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step ENGLISH

In general, a framing in wood or iron which is intended to receive an upright shaft; specif., a block of …

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truck ENGLISH

A small wheel, as of a vehicle; specifically (Ord.), a small strong wheel, as of wood or iron, for a …

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wolframite ENGLISH

Tungstate of iron and manganese, generally of a brownish or grayish black color, submetallic luster, and high specific gravity. It …

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