물고기나 고래 같은 수생 동물의 몸에 돋아나 헤엄을 치거나 방향을 잡는 데 쓰이는 납작한 기관.
A flattened organ or appendage on the body of a fish or other aquatic animal, used for propelling, steering, and balancing in water.
예문:
"The dolphin's dorsal fin appeared briefly above the waves."
"Most fish use their pectoral fins for steering and balance."
비행기, 로켓, 또는 자동차의 뒤쪽에 붙어 공기 저항을 조절하거나 안정성을 유지하는 날개 모양의 부품.
A fixed or adjustable wing-like attachment on an aircraft, missile, or vehicle used to provide aerodynamic stability.
예문:
"The rocket's tail fins help it maintain a straight trajectory during ascent."
"Classic cars from the 1950s often featured large chrome fins."
라디에이터나 엔진 등에서 열을 효과적으로 내보내기 위해 표면에 덧붙인 얇은 금속판.
A thin, projecting metal plate on a device such as a radiator or heat sink, designed to increase surface area for heat dissipation.
예문:
"Bent radiator fins can reduce the cooling efficiency of the air conditioner."
"The heat sink is covered in thin aluminum fins to maximize surface area."
수영이나 다이빙을 할 때 추진력을 얻기 위해 발에 신는 장비.
A pair of large, flat rubber or plastic flippers worn on the feet to help a person swim faster.
예문:
"The scuba diver put on her mask and fins before entering the water."
"Longer fins are generally preferred by free divers for deeper descents."
미국 화폐로 5달러 지폐를 일컫는 속어.
An informal or slang term for a five-dollar bill in the United States.
예문:
"The old man handed the boy a fin for washing his car."
지느러미나 오리발을 움직여서 물속을 나아가다.
To swim or move through water using fins or flippers.
예문:
"We finned slowly along the coral reef, watching the tropical fish."
"The fish finned hard to escape the predator's reach."