tiktaalik (?t?k?t??l?k) n (Animals) an extinct species, Tiktaalik rosae, that is believed to be the missing link between water and land animals[C21: from Inuktitut: burbot]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014