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An obstetrical instrument for performing cephalotripsy.

h stood on its breech, without any carriage, formerly used chiefly for rejoicings and theatrical cannonades. Air chamber. See Air chamber, in the Vocabulary. -- Chamber of commerce, a board or association to protect the interests of commerce, chosen from among the merchants and traders of a city. -- Chamber council,…

A short and simple melody, divided into two parts by double bars, to which unmetrical psalms, etc., are sung or recited. It is the most ancient form of choral music.

ended and fitted to hold or bear; to load; to fill; as, to charge a gun; to charge an electrical machine, etc. Their battering cannon charged to the mouths. Shak.

ite; -- called also macle. The tesselated apperance of a cross section is due to the symmetrical arrangement of impurities in the crystal.

A small bird, the blackcap titmouse (Parus atricapillus), of North America; -- named from its note.

A reflecting telescope, part of which is made to rotate eccentrically, so as to produce a ringlike image of a star, instead of a point; -- used in studying the scintillation of the stars.

An amphitheatrical circle for sports; a circus. [R.] T. Warton.

round; to go a roundabout way. -- Voltaic or Galvanic circuit or circle, a continous electrical communication between the two poles of a battery; an arrangement of voltaic elements or couples with proper conductors, by which a continuous current of electricity is established.

roblems of the higher geometry; viz., to trisect a plane angle, and to construct two geometrical means between two given straight lines.

A collection of persons employed to applaud at a theatrical exhibition.

Well-propotioned; symmetrical. [Poetic] Shak.

That which guides or directs one in anything of a doubtful or intricate nature; that which gives a hint in the solution of a mystery. The clew, without which it was perilous to enter the vast and intricate maze of countinental politics, was in his hands. Macaulay.

The collector of an electrical machine, usually resembling a comb.

A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction.

That which is required to supply a deficiency, or to complete a symmetrical whole. History is the complement of poetry. Sir J. Stephen.

Involving many parts; complicated; intricate. When the actual motions of the heavens are calculated in the best possible way, the process is difficult and complex. Whewell. Complex fraction. See Fraction. -- Complex number (Math.), in the theory of numbers, an expression of the form a + bsq. root-1, when a and b are o…

The state of being complex; intricacy; entanglement. The objects of society are of the greatest possible complexity. Burke.

A state of being complicate or intricate. Mitford.

To fold or twist together; to combine intricately; to make complex; to combine or associate so as to make intricate or difficult. Nor can his complicated sinews fail. Young. Avarice and luxury very often become one complicated principle of action. Addison. When the disease is complicated with other diseases. Arbuthnot.…