Definition of «gill»

A gill is a small, thin-walled respiratory organ found in aquatic animals such as fish and amphibians. It functions to extract oxygen from water that passes over it through diffusion or facilitated diffusion. In terrestrial animals, gills are modified into lungs for breathing air.

Usage examples

  1. The fisherman caught a salmon with enormous gills, showcasing its ability to respire underwater.
  2. The biology teacher explained that the respiratory system of fish involves the exchange of oxygen and carbon dioxide through their gills.
  3. The scuba diver adjusted his snorkel to ensure it was properly positioned over his mouth and connected to his gills, allowing him to breathe underwater.
  4. The marine biologist carefully studied the microscopic structure of the gills under a powerful microscope, trying to understand their function better.
  5. The snorkeler wore a mask that covered his eyes and nose, while the gills on the sides allowed him to breathe comfortably while swimming near the coral reef.

Sentences with «gill»

  • The trademark side gills of the Range Rover also has two alternative design schemes. (carwale.com)
  • Along with the BMW kidney grille, door handles and side gills in black chrome and the carbon - fiber exterior mirror caps, they accentuate the extraordinarily sporty and powerful presence of the car. (press.bmwgroup.com)
  • The vaquita porpoise lives in the Gulf of California, Mexico, where illegal fishing with gill nets has slashed the population by a total of 90 per cent in the past five years (newscientist.com)
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