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The science of testaceous mollusks; conchology. [R.]

The study or science of the life of marine organisms. Agassiz.

Of or pertaining to theology, or the science of God and of divine things; as, a theological treatise. -- The`o*log"ic*al*ly, adv.

The science of God or of religion; the science which treats of the existence, character, and attributes of God, his laws and government, the doctrines we are to believe, and the duties we are to practice; divinity; (as more commonly understood) "the knowledge derivable from the Scriptures, the systematic exhibition of…

terminating in theory or speculation: not practical; as, theoretical learning; theoretic sciences. -- The`o*ret"ic*al*ly, adv.

The speculative part of a science; speculation. At the very first, with our Lord himself, and his apostles, as represented to us in the New Testament, morals come before contemplation, ethics before theoretics. H. B. Wilson.

An exposition of the general or abstract principles of any science; as, the theory of music.

That part of medical science which treats of the discovery and application of remedies for diseases.

That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.

The science which treats of the mechanical action or relations of heat.

The science of heat. Whewell.

A kind of magical science or art developed in Alexandria among the Neoplatonists, and supposed to enable man to influence the will of the gods by means of purification and other sacramental rites. Schaff-Herzog Encyc.

By means of; by the agency of. Through these hands this science has passed with great applause. Sir W. Temple. Material things are presented only through their senses. Cheyne.

A discourse or treatise upon the tides; that part of science which treats of tides. J. S. Mill.

The science of obstetrics, or midwifery; that department of medicine which treats of parturition. [Written also tokology.]

One who is skilled in the science of topography; one who describes a particular place, town, city, or tract of land. Dante is the one authorized topographer of the mediæval hell. Milman.

The science which treats of poisons, their effects, antidotes, and recignition; also, a discourse or treatise on the science.

A treatise in this science. Analytical trigonometry, that branch of trigonometry which treats of the relations and properties of the trigonometrical functions. -- Plane trigonometry, and Spherical trigonometry, those branches of trigonometry in which its principles are applied to plane triangles and spherical triangle…

The science of rotary motion, or of wheel work. Wilkins.

eal; to elucidate; to explain; as, to unfold one's designs; to unfold the principles of a science. Unfold the passion of my love. Shak.