undercoat

• اسم له عدة معانٍ: طبقة واقية تُطلى بها هيكل السيارة من الأسفل لمنع الصدأ؛ طبقة أولية من الطلاء تُوضع على السطح قبل الطبقة النهائية؛ أو الطبقة الكثيفة الناعمة من الفرو تحت الشعر الخارجي الطويل عند الحيوان.

A noun with multiple meanings: a protective coating applied to the underside of a vehicle to prevent rust; a preliminary layer of paint applied to a surface before the main coat; or the dense, soft layer of fur beneath an animal's longer guard hairs.

1. Vehicle protective coatingB2formaltechnical

   A layer of tar or rubber-like material applied to the underside of a motor vehicle to prevent rust and corrosion.

   طلاء مضاد للتآكل

   • The mechanic recommended applying an undercoat to protect the car from winter salt.
   • The truck's undercoat had worn away after years of driving on gravel roads.
   • A fresh undercoat can significantly extend the life of a vehicle's chassis.

   المرادفاتunderseal

2. Base paint layerB1formaltechnical

   The first layer of paint or primer applied to a surface before the final coat.

   طبقة الأساس

   • You need to apply an undercoat before painting the walls for a smooth finish.
   • The painter used a white undercoat to make the blue topcoat more vibrant.
   • Sanding the undercoat helps the final paint adhere better.

   المرادفاتgroundprimer

   الأضدادfinishovercoattopcoat

3. Animal fur layerB2formalscientific

   The dense, soft layer of fur beneath the longer and coarser guard hairs of an animal, providing insulation.

   الوَبَر

   • The dog's thick undercoat keeps it warm during the winter months.
   • Siberian huskies have a dense undercoat that sheds heavily in spring.
   • Brushing the undercoat helps reduce shedding and keeps the animal comfortable.

   المرادفاتdownunderfur

• فعل يعني وضع طبقة تحضيرية من الطلاء أو الدهان أو أي مادة تغطية تحت الطبقة النهائية لتجهيز السطح وحمايته.

A verb meaning to apply a preparatory layer of paint or coating beneath the final finish.

1. Apply a primerB2formal

   To cover a surface with a preparatory layer of paint or sealant before applying the final coat.

   يَطلي بِطَبَقَةٍ تَحْضيرِيَّة

   • Before painting the wall, you should undercoat it to ensure better adhesion.
   • The carpenter undercoated the wooden frame to protect it from moisture.
   • Make sure to undercoat the metal surface to prevent rust.

   المرادفاتgroundprimesealsize