I came across a confusing word when I was reading a Scientific American story, “Controversial Spewed Iron Experiment Succeeds as Carbon Sink” (by David Biello). It goes like this:
“One key to the whole experiment’s success turns out to be the specific diatoms involved, which use silicon to make their shells and tend to form long strands of cellular slime after their demise that falls quickly to the seafloor.”
I'm wondering what “cellular” means in this context. Does it mean “of (diatom) cells” or “porous”?
Could someone kindly enlighten me on this?