plural of twin-clutch gearbox

One of 44 counties in Idaho, United States. County seat: Twin Falls.

(mathematics) A pair of twin primes.

plural of twin prime pair

Synonym of twin-to-twin transfusion syndrome

plural of vanishing twin syndrome

(obstetrics, pathology) A condition where one set of twins or multiple embryos dies in utero, disappears, or is resorbed partially or entirely.

(geology) A type of contact twinning, typically observed in plagioclase, in which the composition surfaces are parallel to one another

(crystallography) The intergrowth of two twin crystals.

The pairing of towns or cities from geographically distinct areas, in order to foster human contact and cultural links.