alligate /ˈælɪɡeɪt/verb 2adjective 1forms 3 verb2 •To solve an arithmetic problem concerning proportions by means of alligation; to associate as having the same ratio.Link or alligate the branches, so as one greater and another less than the root may be linked or yoked together. — 1859 •(no longer used) To bind or tie; to unite.Instincts alligated to their nature. — 1677 adjective1 •Having the same proportion or ratio.The proportional parts are then found by reducing the alligate parts to the same denominator , dropping the denominators and writing the numerators . — 1938 formsalligated · alligating · alligates