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.
Commensalismâone species benefits and the other is unharmed. Parasitismâone species benefits and the other species is harmed. In a parasitic relationship the organism that benefits is called a parasite. The organism the parasite lives on or in is called a host.