CTD

CTD may stand for:

Science and medicine

• Carboxy-Terminal Domain, in biochemistry, the end of an amino acid chain which has specialized functions in some proteins
• Comparative Toxicogenomics Database, a scientific database describing chemical-gene-disease interactions
• Common Technical Document, in pharmaceuticals, a drug approval document
• A conductivity, temperature, depth sampler as instrument in oceanography
• Connective tissue disease, disease targeting the connective tissues of the body
• Carnitine transporter deficiency, a condition preventing the body from using fats for energy
• Cumulative trauma disorder, in occupational safety and health, an injury of the musculoskeletal and nervous systems
• Circling the drain suggests that a patient is close to death

Other uses

• CBS Television Distribution, a global television distribution company & distribution arm of CBS
• Central de Trabajadores Democráticos, a trade union centre in El Salvador
• Changeling: The Dreaming, a role-playing game by White Wolf
• "Cheapest to deliver", in finance
• Corporate Top Dogs, a branding and life-style company in Amsterdam
• Church–Turing–Deutsch principle, in computer science, relates to the universality of simulation.
• Crash Test Dummies, a Canadian folk-rock band.
• Crash to desktop, in computing, an event where a program exits abnormally.
• Cummins Turbo Diesel, in automotive, usually in context with Dodge Ram Trucks, referring to the Cummins B series engine.