The quality or condition of being circumambient; the state of surrounding or encompassing all around.
From 'circumambient' (surrounding all around) + '-cy' (abstract noun suffix). This uncommon noun form appears in 18th-19th century philosophical and poetic texts.
Romantics and philosophers loved words like 'circumambiency' to evoke the invisible forces that surround us—the atmospheric quality of being enveloped. It's beautifully vague in a way modern English avoids.
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