inverts
in-verts
noun
Animals lacking a backbone, such as insects, worms, or molluscs.
"Many inverts play crucial roles in ecosystems."
verb
Turns something upside down or reverses its usual position, order, or direction.
"The machine inverts the bottles before filling them."
noun
Arches or vaults constructed upside down, typically forming the base of sewers.
"Engineers inspected the sewer inverts for damage."