| INV | turn inside out or upside down |
|---|---|
| INV | make an inversion (in a musical composition) |
| INV | a class of synthetic detergents in which the surface-active part of the molecule is the cation |
| INV | a mixture of equal parts of glucose and fructose resulting from the hydrolysis of sucrose |
| INV | an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose |
| INV | any animal lacking a backbone or notochord |
| INV | (zoology) lacking a backbone or spinal column |
| INV | any of various organs of locomotion or attachment in invertebrates |
| INV | (of a plant ovule) completely inverted |
| INV | being in such a position that top and bottom are reversed |
| INV | a punctuation mark used to attribute the enclosed text to someone else |
| INV | a box pleat reversed so that the fullness is turned inward |