| ribs(noun, anatomy, bone) |
| scaphoid(noun, anatomy, bone) |
| shoulder(noun, anatomy, bone) |
| slide rule(noun, technology, entity, form, concept) |
| sternum(noun, anatomy, bone) |
| tabulating machine(noun, technology, entity, form, concept) |
| tarsus(noun, anatomy, bone) |
| technological phase-out(noun, technology, entity, form, concept) |
| trapezoid(noun, anatomy, bone) |
| bony case of the brain(noun, anatomy, bone, skeleton) |
| obsolete technology(noun, technology, entity, form, concept) |
| Antikythera mechanism(noun, technology, entity, form, concept) |
| Bernard Gitton's time-flow clock(noun, technology, entity, form, concept) |
| Bernoulli box(noun, technology, entity, form, concept) |
| Blickensderfer typewriter(noun, technology, entity, form, concept) |
| Castlewood orb drive(noun, technology, entity, form, concept) |
| Cavallo's multiplier(noun, technology, entity, form, concept) |
| Chinese typewriter(noun, technology, entity, form, concept) |
| Coggeshall slide rule(noun, technology, entity, form, concept) |
| Cole's quadrant(noun, technology, entity, form, concept) |