jaskółczy ogon

Literally, “swallow tail”.

• IPA^(key): /jasˈkuw.t͡ʂɨ ˈɔ.ɡɔn/

• Audio

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• Rhymes: -ɔɡɔn

jaskółczy ogon m inan

1. (idiomatic, woodworking) dovetail (type of joint where adjoining components are fastened by multiple tenons cut into wedge shapes resembling a dove's tail, which interlock with mortises having corresponding shapes)

   Synonyms: jaskółcze złącze, rybi ogon

2. (idiomatic, military) hornwork, tenaille (type of fortification consisting of a pair of demi-bastions with a curtain wall connecting them and with two long sides directed upon the faces of the bastions, or ravelins of the inner fortifications, so as to be defended by them)

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• jaskółczy ogon in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
• jaskółczy ogon in Polish dictionaries at PWN