magneticaladj.n.

1581 W. Borough Discours Variation Cumpas i. sig. B.j The ark of the Horizon contained between the true meridian of any place and the magneticall meridian of the same.

1581 W. Borough Discours Variation Cumpas xi. sig. F.iv^v The true meridian is presupposed to be giuen, by the magneticall Needle.

1602 H. Briggs (title) A table to find the height of the Pole; the magnetical declination being given.

1625 N. Carpenter Geogr. Delineated i. iii. 46 A Magneticall Body by some is defined to be that which seated in the Aire, doth place it selfe in one place naturall, not alterable.

1633 T. James Strange Voy. Names Instruments sig. Q2^v The Magneticall Azimuths.

1664 H. Power Exper. Philos. iii. 158 The Magnetical Effluviums..proceed ab extrinseco &c. therefore do impregnate the Stone again, upon their re-admission.

1708 W. Whiston New Theory of Earth (ed. 2) ii. 109 Mr. Halley..has discover'd four Magnetical Poles.

1735 Philos. Trans. 1733–4 (Royal Soc.) 38 470 The last Thing which the illustrious Marquis takes notice of is the Magnetical Declination, which he saith is 13 Degrees West.

1773 P. Brydone Tour Sicily & Malta I. xi. 214 The needle..entirely lost its magnetical power, standing indiscriminately at every point of the compass.

1794 G. Adams Lect. Nat. & Exper. Philos. IV. l. 444 You will find the iron appear more magnetical than the steel.

1797 Encycl. Brit. X. 435/2 The variation of the compass first showed..that the earth had two magnetical poles by which the needle is influenced.

a1830 Encycl. Metrop. (1845) III. 763/2 The first and most simple magnetical instrument is the horizontal needle.

1856 Proc. Royal Soc. 8 49 Ancient observations of the magnetical declination.

1876 C. H. Davis Narr. North Polar Exped. Ship Polaris App. 639 The Coast Survey..has contributed astronomical and magnetical instruments.

1905 Athenæum 29 July 137/3 The cartography, geological, magnetical, seismical, &c., of Italy.

1974 Acta Physica Polonica A. 46 91 The radial distribution of magnetic induction in cylindrical Sn samples was investigated..as a function of..external magnetical field.

1996 Jrnl. Cell Biol. 133 445 A mechanical stress was applied..using a magnetical twisting cytometer.

1621 R. Burton Anat. Melancholy iii. ii. v. iv. 651 Cardan..reckons vp many magneticall remedies.

1628 R. Burton Anat. Melancholy (ed. 3) ii. i. i. 209 Whether by these diabolicall meanes..this disease and the like may be cured? and if they may, whether it bee lawfull to make vse of them, those magneticall cures[?].

1630 J. Hales Let. conc. Weapon-salve 23 Nov. 289 in Golden Remains (1673) He tells of a great Person, who usually works such Magnetical Cures of that disease.

1663 R. Boyle Some Considerations Usefulnesse Exper. Nat. Philos. ii. v. 226 Eminent physicians have both made use of and commended magnetical remedies.

1722 J. Quincy Lexicon Physico-medicum (ed. 2) Magnetism, and Magnetical Virtues, are much used by some who find their Account more in Amusement than useful Knowledge: and some affect to explain or recommend by such Terms, those Remedies, for the Application and Operation of which, they have no better Reasons at hand.

1626 F. Bacon Sylua Syluarum §75 There is an Opinion, that the Moone is Magneticall of Heat, as the Sun is of Cold, and Moisture.

1642 H. More Ψυχωδια Platonica sig. F4^v All these be substances self-moveable: And that we call virtue magneticall..I comprehend it in the life plantall.

1682 N. Grew Anat. Plants i. iii. 22 It will in its own magnetical tendency to ascend, reduce the Cortical Body to a compliance with it.

1686 J. Goad Astro-meteorologica ii. i. 124 For who, almost, grants not..that the Planets are Magnetical Bodys touched by the Sun,..and thereupon move faster when in ♂ with him, direct.

1676 R. Boyle Exper. & Notes Magnetism 20 But Magnetism is so fertile a Subject, that if I had now the leisure and conveniency to range among Magnetical Writers, I should scarce doubt of finding [etc.].

1842 Philos. Trans. (Royal Soc.) 132 225 For the computations I am much indebted to the perseverance and care of Mr. John Broun (now magnetical assistant to Sir Thomas Brisbane).

1990 H. Palmer & T. Palmer Alberta ii. 31 The Palliser Expedition, which worked from 1857 to 1860, included among others Dr. James Hector, geologist and naturalist, and Lieutenant Thomas Blakiston, magnetical observer.