resin
/ˈrezɪn/ (bre, ipa) · /ˈrezn/ (ame, ipa) · /ˈre-zᵊn/ (ame, mw)
resin — noun
1. Trees such as pines and firs give off a sticky, thick liquid called resin when t
Trees such as pines and firs give off a sticky, thick liquid called resin when the bark is cut or injured. The liquid hardens into a yellow or brown solid once it meets the air. Chemically made versions, also called resin, are used in plastics, glues, and protective coatings.
When pine bark is cut, resin oozes out and hardens, sealing the wound.
natural resin from conifer trees
The Japanese craftsman used natural resin to give the wooden bowl a glossy, waterproof finish.
Modern surfboards are often made from epoxy resin, which is lighter and stronger than wood.
Amber is actually fossilised tree resin that can preserve ancient insects inside it perfectly.
Selim mixed a powdered resin with linseed oil to create a rich, long-lasting varnish.
- rosin
Rosin is a specific form of resin — pine resin that has been heated to remove the volatile oils. Used on violin bows and in soldering. Not a general substitute for 'resin'.
- gum
Unlike resin, gum dissolves in water and comes from plants such as acacia. Used in food and medicine as a thickener. Resin is water-resistant and typically water-insoluble.
- sap
Sap is the watery, nutrient-carrying fluid inside a living tree. Resin is a separate, thicker defensive substance the tree produces only when injured. Do not treat them as the same thing.
用法筆記
Natural resin comes mainly from conifers such as pine and fir, and from some tropical trees. Synthetic resins — like epoxy, polyester, and acrylic — dominate industrial applications in adhesives, coatings, and composite materials. The uncountable form is far more common; countable uses (e.g. 'a resin' meaning a specific type) appear in technical contexts.
常見錯誤
resin — verb
1. To cover or treat the surface of something with resin, usually to protect it fro
To cover or treat the surface of something with resin, usually to protect it from moisture or to give it a smooth, shiny appearance.
The boat builder resined the hull to make it waterproof before painting it.
resin + direct object for protection
Valentina resined the wooden tabletop to give it a smooth, shiny finish.
Wren resined the raw floorboards before sanding them down for a natural look.
The canoe was resined on the inside to keep water from seeping through the seams.
Talia resined the circuit board to protect the sensitive components from moisture.
- varnish
Varnish is a coating that often contains resin, but 'varnish' refers specifically to the liquid finish itself and is a more general verb than 'resin'.
- lacquer
Lacquer dries by solvent evaporation and produces a hard, glossy coat. Unlike 'resin', it is not a standalone material but a type of finish that may or may not contain resin.
- seal
Sealing is the broader action of closing a surface against moisture; resin is one method among many (others include wax, oil, or polyurethane).
文法句型
resin + noun phrase
用法筆記
Almost always used with a direct object naming the item being treated. The passive form ('was resined', 'had been resined') is common in descriptions of manufacturing steps. This sense is restricted to craft, woodworking, and marine contexts; it does not appear in everyday conversation.