plural of alarm substance

(zoology) chemical given off from the skin of a fish after injury that warns nearby fish of danger.

An overindulgence in and dependence on a drug or other chemical.

(physics, chemistry) A material with a specific chemical composition.

(biochemistry) A tachykinin neuropeptide associated with inflammatory processes and pain.

A pure chemical substance consisting of a single element (e.g. hydrogen gas).

With respect to substance.

The essential meaning of written or spoken words; gist, crux.

(chemistry) Any group of man-made chemicals created for a variety of household and industrial uses.

(chemistry) Any group of man-made chemicals created for a variety of household and industrial uses.