prosiphon
/prəʊˈsʌɪfn/Palaeontology
noun
The primitive siphon in an embryonic ammonoid, consisting of a kind of ligament attached to the protoconch.
Origin
Late 19th century; earliest use found in The Century Dictionary. From pro- + siphon.
- policemanly
- policeman's helmet
- policemanship
- police-master
- police matron
- police message
- police novel
- police office
- police officer
- police orphanage
- policeperson
- Police Positive
- police power
- police procedural
- police rate
- police record
- police reporter
- police riot
- police runner
- police science
- police scientist
- police service
- police siren
- police special
- police state