Definitions

1. noun

an organism that has the usual or natural characteristics of a species, as opposed to one that has been genetically modified or altered in some way.

“The geneticist studied the wildtype strain of bacteria to understand its natural behavior.”

2. noun

a strain of a virus or other organism that has not been genetically engineered and is considered to be the normal or unaltered form.

“The researchers used the wildtype virus as a control in their experiment.”