Would a Centaur like creature be considered humanoid if the raised portion of the creature, human part in mythological centaurs, was indeed more or less human in appearance would that be considered humanoid? John Varley raised this question, IMHO, in his books Titan, Wizard, and Demon. The aliens are so human in appearance that we found them sexually attractive and could mate with them but they were centaurs with three sexes but only two individual sexes were readily apparent. But Gorillas are humanoid but not exactly sexually compatible with us fragile humans. Would sexual attraction cause less than humanoid aliens to be considered humanoid?