caulk
US /kɑːk/
UK /kɑːk/

1.
masilla, sellador
a waterproof filler and sealant, used in building and repairing boats and in household applications.
:
•
He applied caulk around the bathtub to prevent leaks.
Aplicó masilla alrededor de la bañera para evitar fugas.
•
The old windows needed fresh caulk to seal them properly.
Las ventanas viejas necesitaban masilla nueva para sellarlas correctamente.
1.
sellar, masillar
to seal (a gap or seam) with caulk.
:
•
You need to caulk around the window frames to prevent drafts.
Necesitas sellar alrededor de los marcos de las ventanas para evitar corrientes de aire.
•
The boat builders carefully caulked every seam to ensure it was watertight.
Los constructores de barcos sellaron cuidadosamente cada junta para asegurarse de que fuera estanca.