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oxidant that which causes the oxidation of another chemical or compound.
oxidation a chemical process in which oxygen is combined with another element or compound to form a different compound. [3 definitions]
oxidation-reduction a chemical reaction in which atoms of one element lose electrons to the atoms of another.
oxide a compound that includes oxygen.
oxidize to combine with oxygen, as in burning or rusting. [4 definitions]
oxidizer an oxidizing agent, esp. one that is used to power a rocket or fuel cell.
oxlip a primrose bearing clusters of pale yellow flowers in early spring.
oxpecker either of two African birds, related to starlings, that feed on ticks living on the hides of large animals.
oxtail the tail of an ox, esp. when skinned and used as the main ingredient in soup or stew.
oxy-1 acute; sharp; pointed.
oxy-2 oxygen.
oxyacetylene relating to the combination of acetylene and oxygen in producing a high temperature flame for welding and cutting.
oxycephaly a condition in which the skull is somewhat peaked or conical, as the result of premature closing of the skull sutures.
oxygen a chemical element that has eight protons in each nucleus and that occurs in pure form, as a colorless, odorless gas essential to the respiration of living things, or in important compounds such as water, carbohydrates, and oxide minerals. (symbol: O)
oxygenate to combine, supply, or treat with oxygen.
oxygenless combined form of oxygen.
oxygen-starved of a living organism, deprived of an adequate oxygen supply.
oxygen tent a transparent, tentlike enclosure that is fitted around the head and shoulders of a bedridden patient to form a chamber into which oxygen can be released.
oxyhydrogen of or pertaining to a mixture of oxygen and hydrogen. [2 definitions]
oxymoron a figure of speech in which an apparent contradiction makes or highlights a point, as in the phrase "a frozen flame".
oxytocin a hormone produced by the pituitary gland that increases contractions of the uterus and stimulates milk production.