原虫 yuánchóng protozoan Origin Definitions Defs Strokes Stroke Words Sentences Sents 疟原虫 nüèyuánchóng plasmodium plasmodium (malaria parasite)恶性疟原虫 èxìngnüèyuánchóng Plasmodium falciparum Plasmodium falciparum (malaria parasite)阿米巴原虫 āmǐbāyuánchóng amoeba a type of single-celled organism that moves and feeds by means of pseudopods