Deimosian adjective 1noun 1forms 1 adjective1 •Of or relating to the moon Deimos.He paled in comparison to the eight foot tall Deimosian female. — 2013 noun1 •An inhabitant of Deimos.I was taking Valerie's kid to the Central Park Zoo when the Phobosians and the Deimosians started uprooting the city's power cables. — 2002 formsDeimosians
