A person who is homosexual, especially a male. In the early 20th century, the term 'invert' was used to describe someone who was homosexual.
A sugar obtained by the hydrolysis of sucrose, consisting of a mixture of glucose and fructose. Invert sugar is often used in the food industry to maintain moisture and improve texture.
The lowest interior point (floor) of a pipe, sewer, or channel through which fluid flows. The contractor checked the invert of the storm drain to verify the correct slope.
An invertebrate animal, especially one kept in an aquarium or terrarium. Reef hobbyists often add inverts like shrimp and snails to help maintain tank cleanliness.