a. [f. as prec. + -ICAL.]

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  1.  Concerned with atoms; = ATOMIC a. 2, 3.

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1664.  Power, Exp. Philos., I. 57. The Controversie twixt the Peripatetick and Atomical Philosophers.

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1866.  Ferrier, Lect. Grk. Philos., I. viii. 170. Doctrines of the Atomical philosophers.

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  2.  Of or pertaining to atoms; = ATOMIC a. 1.

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1660.  Ingelo, Bentiv. & Ur. (1682), II. 206. The parts of this Atomical Composition still marching away, and other succeeding in their rooms.

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1836.  Todd, Cycl. Anat. & Phys., I. 58/2. The microscopical and atomical structure of fat.

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  3.  Tiny, very minute.

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1646.  Sir T. Browne, Pseud. Ep., 53. Their powders and Atomicall divisions.

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1752.  Lisle, Observ. Husb., 11. Minute, atomical, imperceptible bodies.

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