"Hypoxic events" refers to situations where there is a lack of oxygen in a particular area, which can be harmful to living organisms. In simple terms, it means a shortage of oxygen that can cause problems for living things. Full definition
The fetus suffered an in - utero hypoxic event due to a small placenta. (skepticalob.com)
I came across your blog from a link in a private forum for special needs kids that have suffered a hypoxic event at birth. (rachelcoleman.com)
In fact, the Oregon Department of Fish and Wildlife put submersible vehicles off Oregon's coast during a hypoxic event that went anoxic (oxygenless) in 2006, he says, monitoring conditions and recording numerous carcasses of sea stars, sea cucumbers, marine worms and fish. (scientificamerican.com)