Backs
Spines
Mutual synonyms
Both words in one sentence
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They often sported lizardlike heads with rows of spines running down their backs.
Source: Dinosaurs Are Dragons -
The story "The Nutcracker Coup" by Janet Kagan is about aliens with hedgehog-like spines down their backs.
Source: Traumatic Haircut -
Upgraded PredAliens will grow in power every time they engage in combat, molting and gaining HP as well as spines on their backs.
Cite this Source
Spines and Backs. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/backs/spines
Backs & Spines. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/backs/spines>.
Spines or Backs. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/backs/spines.
Google Ngram Viewer shows how "backs" and "spines" have occurred on timeline