Hidden (especially in the soil); not easily visible.
Living in a cavity or small cave.
Relating to a cryptozoite.
Having a covert or hidden meaning.
Reasonably large in number or amount.
Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related).
Having a noticeable or major effect.
Signifying something; carrying meaning.
That which has significance; a sign; a token; a symbol.