Synonyms:
larval
Meaning: immature of its kind; especially being or characteristic of immature insects in the newly hatched wormlike feeding stage; "larval societies"; "larval crayfishes"; "the larval stage"
Usage examples
I incline, then, to think that the objects that fell at Bath were neither jellyfish nor masses of frog spawn, but something of a larval kind--
It will mean that something had been in a stationary position for several days over a small part of a small town in England: this is the revolutionary thing that we have alluded to before; whether the substance were nostoc, or spawn, or some kind of a larval nexus, doesn't matter so much.