chord² /körd/

1. A string of a musical instrument (archaic and poetic)
2. A sensitive area of the emotions, feelings, etc (figurative)
3. A straight line joining any two points on a curve (geometry)
4. An old spelling of cord (see spinal cord under spine and vocal cords under vocal)
5. The straight line joining the leading and the trailing edges of an aerofoil section (aeronautics)
6. One of the principal members of a truss (engineering)

chorˈda noun (pl chorˈdae) (zoology)

1. Any stringlike structure in the body
2. The notochord

chordˈal adjective

chordamesˈoderm noun (anatomy and zoology)

The layer of specialized cells in the middle of a developing embryo which forms the notochord and structures of the central nervous system

chorˈdate noun

A member of the Chordāta, a phylum of the animal kingdom, including the vertebrates and protochordates, animals possessing a notochord at some stage of their development (also adjective)

chordophone /körˈdō-fōn/ noun (music)

Any instrument in which a string vibrates to produce a sound, including the zither, piano, lute, lyre and harp

chordophonic /-fonˈik/ adjective

chordotomy noun see under cord

• threading
• thread-lace
• thread-laces
• threadlike
• threadmaker
• threadmakers
• thread mark
• thread marks
• Threadneedle Street
• thread of life
• thread-paper
• thread-papers
• threads
• thread vein
• thread veins
• threadworm
• threadworms
• thready
• threap
• threaping
• threapit
• threaps
• threat
• threated
• threaten