romboid Adjective, romboid rhomboid Appox. usage (any sense): 0.015 per million words Appox. usage (any sense): 0.015 per million words
romboidal Adjective, romboidal rhomboid Appox. usage (any sense): less than 0.1 per million words Appox. usage (any sense): less than 0.1 per million words