Akademik

A compound of oxygen with another element or a radical; e.g., mercuric o., HgO.

- acid o. an acid anhydride; an o. of an electronegative element or radical; it can combine with water to form an acid.

- basic o. a base anhydride; an o. of an electropositive element or radical; it can combine with water to form a base.

- indifferent o. SYN: neutral o..

- neutral o. an o. that is neither an acid nor a base; e.g., water (hydrogen o., H₂O). SYN: indifferent o..

ox·ide 'äk-.sīd n a binary compound of oxygen with a more electropositive element or chemical group