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Webster 1913 Edition

Noun.

[Cf. F.

verticité

. See

The quality or power of turning; revolution; rotation.

[R.]

Locke.

I hardly believe he hath from elder times unknown the

verticity

of the loadstone.

Sir T. Browne.

Noun.

[from vertex, supra.]

The power of turning; revolution; rotation.

That property of the lodestone by which it turns to some particular point.

The attraction of the magnet was known long before its verticity.

verticity ‎(plural verticities)

The quality or power of turning; revolution; rotation.
I hardly believe he hath from elder times unknown the verticity of the loadstone. — Sir T. Browne.