noun🔗SharePlatelmintoAny of very many parasitic or free-living worms, of the phylum Platyhelminthes, having a flattened body with no skeleton or body cavity."The biology class dissected a flatworm to study its simple anatomy. "La clase de biología diseccionó un platelminto para estudiar su anatomía simple.organismanimalbiologyChat with AIVocabulary GamePractice Reading