Definitions
respiratory organ of aquatic animals that breathe oxygen dissolved in water
Word origin
From Middle English gille, from Old French gille (“a wine measure”), from Medieval Latin gillo (“earthenware jar”).
Used in a sentence
“Fishes […] perform their respiration under water by the gills.”
“Gill nets are designed to catch a fish by the gills.”
“dropsy fills you to the gills”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Aquatic breathing organ”4 letters
02“Fish breathing organ”4 letters
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