(inorganic chemistry) The oxyanion BO₃³⁻ or any of several more complex derivatives / A salt or ester formed by the combination of boric acid with a base or positive radical

Relating to, or impregnated with borax. / (dated, inorganic chemistry) Synonym of boric.

(Cockney rhyming slang) penniless

Borago officinalis, a Mediterranean plant with rough, cucumber-flavored leaves and stems, used in salads and cooked.

(inorganic chemistry) in qualitative inorganic analysis, a test for the presence of certain metallic elements by observing the colours given to a bead of borax in a loop of platinum wire held in the oxidizing and reducing parts of a Bunsen burner flame

(inorganic chemistry) Any binary compound of boron and hydrogen.

(inorganic chemistry) An inorganic hydride of nitrogen and boron, NH₃BH₃, proposed as a source of hydrogen in motor vehicles.

(chemistry) any molecular species of general formula RB:; the boron analogue of carbenes

(intransitive, Australia, New Zealand, often with "at") To ridicule.

(intransitive, Australia, often with "at") To impart false information in an attempt to mislead. / (intransitive, Australia, often with "at") To ridicule.