Pronunciation: /æbˈdɑmənəl fɪn/
noun a fin located on the underside of a fish's body, near the abdomen
A1 Fish use their abdominal fin to help them swim.
A2 The abdominal fin of the shark provides stability as it moves through the water.
B1 The abdominal fin is an important feature for many species of fish in maintaining balance.
B2 Scientists study the structure and function of the abdominal fin to better understand fish locomotion.
C1 The intricate design of the abdominal fin allows for precise movements and control in aquatic environments.
C2 Research has shown that the size and shape of the abdominal fin can vary greatly among different fish species.
formal The abdominal fin of the fish helps with stability and maneuverability in the water.
informal Check out the cool abdominal fin on this fish - it's like a little rudder!
slang That fish's belly fin is wicked awesome, dude!
figurative Just like a fish needs its abdominal fin to navigate the water, we need our inner strength to navigate life's challenges.
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