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The quantities or relations which are assumed to be given in any problem. Datum line (Surv.), the horizontal or base line, from which the heights of points are reckoned or measured, as in the plan of a railway, etc.

. -- Death knell, a stroke or tolling of a bell, announcing a death. -- Death rate, the relation or ratio of the number of deaths to the population. At all ages the death rate is higher in towns than in rural districts. Darwin. -- Death rattle, a rattling or gurgling in the throat of a dying person. -- Death's door,…

ve in the line of descent, determining the proximity of blood; one remove in the chain of relationship; as, a relation in the third or fourth degree. In the 11th century an opinion began to gain ground in Italy, that third cousins might marry, being in the seventh degree according to the civil law. Hallam.…

or derivable upon me. South. The exquisite pleasure derivable from the true and beautiful relations of domestic life. H. G. Bell. The argument derivable from the doxologies. J. H. Newman.

The state or method of being derived; the relation of origin when established or asserted.

Pertaining to, or in relation with, both dermal and hæmal structures; as, the dermohæmal spines or ventral fin rays of fishes.

Pertaining to, or in relation with, both dermal and neural structures; as, the dermoneural spines or dorsal fin rays of fishes. Owen.

ptive of the age. Descriptive anatomy, that part of anatomy which treats of the forms and relations of parts, but not of their textures. -- Descriptive geometry, that branch of geometry. which treats of the graphic solution of problems involving three dimensions, by means of projections upon auxiliary planes. Davies &…

The act of determining the relations of an object, as regards genus and species; the referring of minerals, plants, or animals, to the species to which they belong; classification; as, I am indebted to a friend for the determination of most of these shells.

A narrative or history; a recital or relation.

A bishop, viewed in relation to his diocese; as, the diocesan of New York.

ain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl.

ect, guide, or govern; showing the way. Hooker. The precepts directive of our practice in relation to God. Barrow.

distinguishes one thing from another; power of viewing differences in objects, and their relations and tendencies; penetrative and discriminate mental vision; acuteness; sagacity; insight; as, the errors of youth often proceed from the want of discernment.

A lack of common possessions, properties, or relationship. Community of embryonic structure reveals community of descent; but dissimilarity of embryonic development does not prove discommunity of descent. Darwin.

fluenced by regard to personal interest or advantage; free from selfish motive; having no relation of interest or feeling; not biased or prejudiced; as, a disinterested decision or judge. The happiness of disinterested sacrifices. Channing.

To break the natural order and relations of; to make incoherent; as, a disjointed speech.

se the parts of, as an animal or a plant, for examination and to show their structure and relations; to anatomize.

disorganize; to break up; hence, to bring to an end by separating the parts, sundering a relation, etc.; to terminate; to destroy; to deprive of force; as, to dissolve a partnership; to dissolve Parliament. Lest his ungoverned rage dissolve the life. Shak.

Remoteness in succession or relation; as, the distance between a descendant and his ancestor.