adjective. producing two offspring at a time.
Sentences with twinning
1. Noun, singular or mass
Unlike fraternal twinning, scientists still do not know the exact reason why the zygote splits to form identical twins.
Most twinning abortions occurs between the eighth and ninth month of pregnancy.
3. Verb, gerund or present participle
But, if you're willing to wait, this winter can be filled with you and your dog totally winning at twinning**.