loco

To poison with the loco-weed or crazy-weed.

noun

Same as loco-weed.

noun

A disease of animals resulting from eating loco-weeds.

Derived from loco-weed.

noun

An abbreviated form of locomotive.

Hence To make crazy or in any way eccentric: as, he’s plumb locoed.

adverb

A direction in written or printed music to return to the proper pitch after having played an octave higher.

noun

A plant (Astragalus Hornii) growing in the Southwestern United States, which is said to poison horses and cattle, first making them insane. The name is also given vaguely to several other species of the same genus. Called also loco weed.

noun

Any one of various leguminous plants or weeds besides Astragalus, whose herbage is poisonous to cattle, as Spiesia Lambertii, syn. Oxytropis Lambertii.

noun

A locomotive.