Medical Definition of HPI. history of present illness.What made you want to look up HPI? Please tell us where you read or heard it (including the quote, if possible). View Seen & Heard Highlights from Around the Site. Test Your Vocabulary! Test Your Vocabulary!10 Charming Words for Nasty People.edical Definition of HPI. history of present illness.
parÂ·aÂ·sitÂ·oid. n. An organism, usually an insect, that lives on or in a host organism during some period of its development and eventually kills its host. parâ²aÂ·sitÂ·oidâ² adj.
(wÃ»rm) 1  Any of various invertebrate animals having a soft, long body that is round or flattened and usually lacks limbs. The term worm is used variously to refer to the segmented worms (or annelids, such as the earthworm), roundworms (or nematodes), flatworms (or platyhelminths), and various other groups.