Genetically engineered (GE) is a way of describing an organism into which scientists have introduced a new trait that the organism didn’t already have.
Genetic engineering is a very targeted approach to breeding – the organism in question actually gets some new DNA as part of the deal. GE organisms contain an rDNA (or recombinant DNA, itself created in a lab) construct that produces the new trait.
For example…
GE crops are more resistant to pests. GE baking aids make that cake you’re making a little fluffier. GE animals grow twice as fast.