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.
Dictionary entry overview: What does parasite mean? â¢ PARASITE (noun) The noun PARASITE has 2 senses: 1. an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host 2. a follower who hangs around a host (without benefit to the host) in hope of gain or advantage Familiarity information: PARASITE used as a noun is rare.