Word Study
[2x]
: Pâ Pæ Pè Pé Pœ P- P. P/ P< Pa Pb Pc Pd Pe Pf Ph Pi Pj Pk Pl Pm Pn Po Pp Pr Ps Pt Pu Pv Pw Px Py
prosiphon
CIDE DICTIONARY
prosiphon, n. [Pref. pro- for + siphon.].
A minute tube found in the protoconch of ammonites, and not connected with the true siphon. [1913 Webster]
For further exploring for "prosiphon" in Webster Dictionary Online