Other Conditions Causing Yellow Toenails. Although fungal infection is the most likely cause of yellow toenails, rarely, some other disease conditions can also result in yellow toenails. Some of these conditions are psoriasis, jaundice, paronychia, lymphedema, bronchiectasis, tuberculosis and sinusitis.
1. a plant or animal that lives upon or within another living organism at whose expense it obtains some advantage; see symbiosis. 2. the smaller, less complete member of asymmetrical conjoined twins, attached to and dependent upon the autosite.parasitÂ´ic. malarial parasite Plasmodium.
Rating Newest Oldest. Best Answer: A parasite is an organism that lives in or on another organism. It lives in a symbiotic relationship in which the parasite gains at the expense of the host organism. Source(s): anion Â· 8 years ago. Thumbs up. 1. Thumbs down. 0. 1 comment. Loading ...