Spending various phases of a life period on various, usually unrelated hosts. Applied of parasites such rust fungi and tapeworms.
Of centered organisms, spending portions regarding the life period on different types of hosts.
Passing through various stages with its life history on an alternation of hosts, once the common wheat-rust fungi (Puccinia graminis), and particular various other parasitic fungi; -- contrasted with autœcious.
of parasites; driving through various phases regarding the life pattern on various host types