What is "oxyd"

Oxide \Ox"ide\ ([o^]ks"[i^]d or [o^]ks"[imac]d), n. [F. oxyg[`e]ne oxygen + acide acid: cf. F. oxyde. The French word was correctly spelt oxide, till about the year 1840, when, in ignorance or forgetfulness of the true history and composition of the word, the orthography was change to make it represent the [upsilon] of Gr. 'oxy`s, from which it was supposed to be directly derived.] (Chem.) A binary compound of oxygen with an atom or radical, or a compound which is regarded as binary; as, iron oxide, ethyl oxide, nitrogen oxide, etc.

Note: In the chemical nomenclature adopted by Guyton de Morveau, Lavoisier, and their associates, the term oxides was made to include all compounds of oxygen which had no acid (F. acide) properties, as contrasted with the acids, all of which were at that time supposed to contain oxygen. The orthography oxyde, oxyd, etc., was afterwards introduced in ignorance or disregard of the true etymology, but these forms are now obsolete in English. The spelling oxid is not common.

n. (rare spelling of oxide English)

Oxyd is a computer puzzle game released for the Amiga, Atari ST, Macintosh, PC, and the NeXT platform by Dongleware Verlags GmbH in 1990.

It is a game of puzzles and tests that challenge the player to restart all the oxygen generators (called Oxyds) on his/her home planet. The Oxyds must be restarted by "opening" them in pairs of matching patterns, and (in colour versions) matching colours.

It was originally developed for the ATARI-ST in the Megamax Modula-2 programming language.