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Webster 1913 Edition

Noun.

[L.

obtenebrate

to make dark.]

The act of darkening; the state of being darkened; darkness.

[Obs.]

In every megrim or vertigo, there is an

obtenebration

joined with a semblance of turning round.

Bacon.

Noun.

[from L. ob and tenebrae, darkness.]

A darkening; act of darkening; darkness.

In every megrim or vertigo there is an obtenebration joined with a semblance of turning round. [Little used.]

obtenebration

(obsolete) The act of darkening; darkness.
In every megrim or vertigo, there is an obtenebration joined with a semblance of turning round. — Bacon.