neu·ru·la (nrə-lə, -yə-lə, nyr-)
n. pl. neu·ru·las or neu·ru·lae (-lē)
An embryo at an early stage of development in which neurulation begins.
[New Latin : from Greek neuron, sinew, string, nerve; see (s)neəu- in the Appendix of Indo-European roots + Latin -ula, feminine diminutive suffix.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.