dualis

Definitiones

1. dual
   declension-3, dual, two-termination
2. Equivalent to 'Dual': Of an item that is one of a pair, the other item in the pair.

Aequivalentia

Exempla

“4th century CE, Maurus Servius Honoratus, In tria Virgilii Opera Expositio http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0053:book=2:commline=1&highlight=dualis Nec est ut quidam dicunt dualis numerus, qui apud Latinos numquam penitus invenitur.”

It is not, as some state, a case of the dual number, the which is not found in the latin tongue.

Gradus CEFR