obsolete growth or development of symbiont in host (obsolete GO:0044412)
growth or development of organism within host
exact
growth or development of symbiont in host
exact
growth or development of symbiont within host
exact
invasive growth
broad
OBSOLETE. The increase in size or mass of an organism, or the progression of an organism from an initial condition to a later condition, occurring within the cells or tissues of the host organism. This may (but not necessarily) include a filamentous growth form, and also can include secretion of proteases and lipases to break down host tissue. The host is defined as the larger of the organisms involved in a symbiotic interaction.