Genetically engineered is a term used to describe organisms that have been altered or modified through genetic engineering techniques. Some synonyms for genetically engineered include genetically modified, genetically manipulated, biologically engineered, bioengineered, transgenic, genetically altered, and genetically transformed. These terms are often used interchangeably to refer to organisms that have had their DNA modified in a laboratory setting to achieve a desired trait or characteristic. While genetically engineered organisms have many potential benefits, including increased crop yields and resistance to disease, they are also controversial due to concerns over their potential impact on the environment and human health.