pump-bob
now rare
noun
A mechanism for converting rotary motion into linear motion suitable for operating a pump.
Origin
Late 19th century.
- proton synchrotron
- protonym
- protonymph
- protonymphal
- protonymphon
- proto-ocean
- proto-oncogene
- proto-organism
- protopapas
- proto-parent
- protopathic
- protopathic bias
- proto-patriarch
- proto-patriarchal
- protopectin
- protopectinase
- protoperithecial
- protoperithecium
- protopetroleum
- protophenomenon
- protophilic
- protophloem
- protophylic
- protophyll
- Protophyta