Definitions
from The Century Dictionary.
- noun The predecessor of the protosiphon in the Ammonites, consisting of a kind of ligament united to the wall of the initial chamber, or protoconch.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) A minute tube found in the protoconch of ammonites, and not connected with the true siphon.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology A
minute tube found in theprotoconch ofammonites , not connected with the truesiphon .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
pro- + siphon
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Examples
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