Maitland Club > Works of Sir Thomas Urquhart

134 THE LEXICIDION.
Area, is the capacity of a figure, and whole content thereof.
Arch, or ark, is the segment of a circumference lesse then a semicircle ; major arch is
above 45 degrees, a minor arch lesse then 45, vide Circle.
Arithmetical complement, is the difference betweene the logarithm to be substracted,
and that of the double or single radius.
Artijiciall numbers, are the logarithms, and artificiall sine the logarithm of the sine.
Axiome, is a maxim, tenet, or necessary principle, whereupon the science of a thing
is grounded. It cometh from «f«>9, dignus ; because such things are worthy our
knowledge.
B.
Basalt, adjectively, is that which belongeth. to the base, or the subjacent side, but
substantively the great base.
Basanejulary, is said of the angle at the base.
Basidion, or baset, is the little base, all which come from the Greek word Zalvui, fHfyica.
Basiradius, is the totall sine of that arch, a segment whereof is the base of the pro-
posed sphericall triangle.
Bisected, and Bisegment, are said of lines cut into two equall parts : it comes from
biseco, bisecare, bisection, bisegmen.
Bluntnesse, or Jiatnesse, is the obtuse affection of angles.
Bucamon, by this name is entitled the seven and fortieth proposition of the first of the
elements of Euclid ; because of the oxe, or, as some say, the hecatomb which Py-
thagoras, for gladnesse of the invention, sacrificed unto the gods ; of pis, bos, and
appvfiat, vicissim aliquid capio ; they being, as it is supposed, well pleased with that
acknowledgement of his thankfulnesse for so great a favour, as that was which he
received from them. You may see the proposition in the seventeenth of my Apo-
dicticks.
Canon, is taken here for the table of sines and tangents, or of their logarithms : it pro-
perly signifieth the needle or tongue of a balance, and metaphorically a rule whereby
things are examined.
Cases, are the parts wherein a mood is divided from cado.
Cathetos, is a perpendicular line, from Ka6i>/fit, demitto, of Kara, and I'ij/h.
Catheteuretick, is concerning the finding out of the perpendicular of KdOerov, and cvp/axa,
tvpljew, invenio.
Cathetobasall, is said of the concordances of loxogonosphericall moods, in the datas of
the perpendicular and the base, for finding out of the maine quaesitum.