spiny-finned
8.4
A fish whose fins have hard, sharp points instead of soft parts
- adjective
- Specialized
- During the dive, we were excited to encounter several spiny-finned fish swimming among the coral reefs.
Examples
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The scientist explained that the spiny-finned fish have a unique structure that distinguishes them from soft-finned varieties.
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Aquarists often prefer spiny-finned species because of their interesting behaviors and vibrant colors.
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Indeed, many traditionally recognized spiny-finned fish groups are shown to be polyphyletic (figure 3).
Academic text (2010)
Antonyms
How Spiny
Surface Forms
spiny-finned positive
Morphology
Etymology
Spiny-finned comes from spiny ('covered with sharp points', like thorns) and finned ('having fins'), so a spiny-finned fish is one whose fins are held by hard, sharp spines instead of soft rays, making it easy to spot.