"Metalloidal" is a word in ENGLISH

An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted …

Of, pertaining to, or characterized by, the essential and implied properties of a metal, as contrasted with a nonmetal or …

Having the properties of a nonmetal; nonmetallic; acid; negative.

Now, one of several elementary substances which in the free state are unlike metals, and whose compounds possess or produce …

Having the appearance of a metal.

Formerly, the metallic base of a fixed alkali, or alkaline earth; -- applied by Sir H. Davy to sodium, potassium, …

Metalloidal; nonmetallic; -- contracted with positive or basic; as, the nitro group is negative.

Any one of the set of elements which, as contrasted with the metals, possess, produce, or receive, acid rather than …

Resembling, or possessing the properties of, a nonmetal or metalloid; as, sulphur is a nonmetallic element.