: a conical pointed projection (such as a small tooth)
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According to new research, the secret to its distinctive hue lies in its tooth-like scales, called dermal denticles, which contain guanine crystals and melanosomes that reflect and absorb wavelengths respectively.—Rosie McCall, Discover Magazine, 14 July 2025 How do denticles grow and change as a shark matures?—Melissa Cristina Márquez, Forbes.com, 26 Apr. 2025 The shape, size and arrangement of denticles vary not just between shark species but even across different parts of the same shark’s body.—Melissa Cristina Márquez, Forbes.com, 26 Apr. 2025 Just like real dermal denticles, these riblets guide airflow in a way that minimizes turbulence and resistance.—Melissa Cristina Márquez, Forbes.com, 26 Apr. 2025 See All Example Sentences for denticle
Word History
Etymology
Middle English, from Latin denticulus, diminutive of dent-, dens
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