resin

Everyday

1. Resin is a thick, sticky liquid that comes out of some trees, especially pine trees, and becomes hard over time. tree →
2. Resin is also a man-made material, a kind of plastic, that is poured in liquid form and sets hard, used for glue, models and art. tree →

In the lessons

In science lessons, tree resin protects a tree when its bark is hurt; fossilized resin is amber, which can trap insects for millions of years. In art and craft, epoxy resin is used for jewellery and models. Violinists rub resin called «rosin» on their bows. Phrases: «tree resin», «pine resin», «epoxy resin».

Examples

• Sticky resin oozed from the pine tree's bark. tree →
• Amber is old resin that has turned hard. tree →
• A tiny insect was trapped inside the resin long ago. tree →
• The artist poured clear resin over the flowers. tree →
• My hands smelled of pine resin after climbing the tree. tree →
• Resin glue sets very hard. tree →

Note

Usually uncountable («some resin»); «resins» means kinds of resin. Not the same as «sap», which is the watery liquid inside a plant. «Rosin» is a special kind of resin for string instruments.