- document type definition: a description of the different types of elements and markup tags allowable in a particular SGML, XML, or HTML document and where they can occur within the document.
- (in prescriptions) give such doses.
Origin of d.t.d.
From the Latin word dentur tālēs dosēs
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- diastrophic dysplasia
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.