diffusion

mastery
UK /dɪˈfjuː.ʒən/ US /dɪˈfju.ʒən/noun

card 1 of 8 · context meaning

Which meaning of 'diffusion' best matches the usage in the sentence?

Even the false-necked vase, though it reaches its widest diffusion at this epoch, is, as we have seen, a type found existing in much earlier strata.