oxy

noun

1. 1.The bivalent R-O-R functional group found in ethers.
2. 2.A mixture of oxygen and acetylene; burns at a high temperature and is used for cutting and welding metals.
3. 3.A synthetic analgesic drug (trademark OxyContin) that is similar to morphine in its effects.
4. 4.The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas.
5. 5.Molecular oxygen (O2), a colorless, odorless gas at room temperature, also called dioxygen.