English Dictionary

flutter

IPA（発音記号）

/ˈflʌtə/

名詞

可算名詞 不可算名詞 イギリス英語

The act of fluttering; quick and irregular motion. / A state of agitation. / An abnormal rapid pulsation of the heart.

日本語の意味

ひらひらと揺れる動作、または不規則な振動状態 / 動揺や興奮による一時的な混乱・慌ただしさ / 心臓が異常に速く打つ状態（心拍の不規則な変動）

A sudden flutter in her chest made her stop mid-sentence.

胸の突然の高鳴りで彼女は言葉を途中で止めた。

意味（1）

The act of fluttering; quick and irregular motion.

the flutter of a fan

意味（2）

A state of agitation.

flutter of spirits

意味（3）

An abnormal rapid pulsation of the heart.

意味（4）

(uncountable, aerodynamics) An extremely dangerous divergent oscillation caused by a positive feedback loop between the elastic deformation of an object and the aerodynamic forces acting on it, potentially resulting in rapid structural failure.

The possibility was studied that there might be some unknown phenomenon at work that could cause a reduction in structural stiffness with age. Such a reduction in stiffness could result in a reduced flutter speed and lead to flutter. In 2004, Airbus conducted GVT in support of its MRTT program. The testing was conducted on an aged A310 aircraft (MSN 523) that had accumulated over 28 000 flight hours. This test aircraft had the same design of VTP and rudder as the occurrence aircraft. GVT results found that fin bending and rudder rotation frequencies of the MRTT test aircraft were consistent with those obtained during the original A310-300 certification. No indication was found to suggest that stiffness had reduced with age.

意味（5）

(Britain) A small bet or risky investment.

Oh, by the way, I heard of a rather good thing today, New Kleinfonteins; it's a gold mine in Rhodesia. If you'd like to have a flutter you might make a bit.

意味（6）

A hasty game of cards or similar.

意味（7）

(audio, electronics) The rapid variation of signal parameters, such as amplitude, phase, and frequency.

Coordinate term: wow

flutters （ plural ）