spinationn.
/spʌɪˈneɪʃən/ The condition of having spines; the manner in which spines are formed or arranged.
ΘΚΠ
the world > animals > animal body > general parts > [noun] > slender or pointed part > sharp > spine > quality of being or having
spinousness1846
spination1866
1866 Bowerbank Monogr. Brit. Spongiadæ II. 199 The internal defensive spicula..are readily to be distinguished from the skeleton ones, by..their entire spination.
This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2018).
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n.1866