Entry 1 sense Webster, 1913 Macrodactyl /(măk`rō̇*dăk"tĭl)/ · Mac·ro·dac·tyl · IPA 01 n. One of a group of wading birds (Macrodactyli) having very long toes. 1. One of a group of wading birds (Macrodactyli) having very long toes.(Zool.)