An oxygenated metabolite from polyunsaturated 20 carbon fatty acids including lipoxygenase and cyclooxygenase products and their synthetic analogs. This includes the prostaglandins and thromboxanes.

• 来自于20碳多不饱和脂肪酸的一种氧化代谢物；包括脂氧合酶产物；环加氧酶产物及其合成类似物；其中包括了前列腺素及血栓烷类.