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.
Knowledge center. A parasite is an organism that lives in another organism, called the host, and often harms it. It is dependent on its host for survival-it has to be in the host to live, grow and multiply.A parasite cannot live independently. Although a parasite rarely kills the host, in some cases it can happen.nowledge center. A parasite is an organism that lives in another organism, called the host, and often harms it. It is dependent on its host for survival-it has to be in the host to live, grow and multiply.