ac·an·thol·o·gy
| \ ˌaˌkanˈthäləjē, ˌakən- \
plural -es
Definition of acanthology
: the study of spines (as of sea urchins) especially as an adjunct of taxonomy
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Merriam-Webster unabridged
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Time Traveler for acanthology
The first known use of acanthology was in 1879
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