| Belgian | belga |
| patent | an official right to be the only person to make, use or sell a product or an invention |
| synthetic | artificial; made by combining chemical substances rather than being produced naturally by plants or animals |
| constituent | 1. a person who lives, and can vote in a constituency
2. one of the parts of sth that combine to form the whole |
| coal | a hard black mineral that is found below the ground and burnt to produce heat |
| alcohol | drinks such as beer, wine, etc. that can make people drunk |
| revert | return,go back |
| viscous | thick and sticky; not flowing freely |
| thermal | connected with heat
thermo- |
| impetus | 1. something that encourages a process or activity to develop more quickly
2. the force or energy with which sth moves |
| pragmatic | solving problems in a practical and sensible way rather than by having fixed ideas or theories |
| substitute | 1. a person or thing that you use or have instead of the one you normally use or have
2. a player who replaces another player in a sports game |
| dwindle | to become gradually less or smaller |
| tortoiseshell | the hard shell of a turtle |
| ivory | a hard yellowish-white substance like bone that forms the tusks (= long teeth) of elephants and some other animals |
| embark on | begin,start,engage in,attempt,tackle |
| embark | to get onto a ship; to put sth onto a ship |
| substance | 1. a type of solid, liquid or gas that has particular qualities
2. the quality of being based on facts or the truth
3. the most important or main part of sth
4. importance |
| acid | a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven.
sour : having a taste like that of a lemon |
| volatile | 1. changing easily from one mood to another
2. likely to change suddenly; easily becoming dangerous
3. that changes easily into a gas |
| furtune | 1. a large amount of money
2. the good and bad things that happen to a person, family, country, etc. |
| amass | to collect sth, especially in large quantities |
| manufacture | 1. to make goods in large quantities, using machinery
2. to invent a story, an excuse, etc.
3. to produce a substance |
| outline | 1. to give a description of the main facts or points involved in sth
2. to show or mark the outer edge of sth |
| kettle | a container with a lid, handle and a spout , used for boiling water |
| soluble | 1. that can be dissolved in a liquid
2. that can be solved |
| malleable | 1. that can be hit or pressed into different shapes easily without breaking or cracking
2. easily influenced or changed |
| tray | a flat piece of wood, metal or plastic with raised edges, used for carrying or holding things, especially food |
| moisture | very small drops of water that are present in the air, on a surface or in a substance |
| compound | a thing consisting of two or more separate things combined together |
| earring | a piece of jewellery that you fasten in or on your ear |
| taper | to become gradually narrower; to make sth become gradually narrower |
| evenly | 1. in a smooth, regular or equal way
2. with equal amounts for each person or in each place
3. calmly; without showing any emotion |
| impractical | 1. not sensible or realistic
2. not good at doing things that involve using the hands; not good at planning or organizing things |
| crucial | extremely important, because it will affect other things |
| disdain | the feeling that sb/sth is not good enough to deserve your respect or attention |
| industrial | connected with industry |
| porous | having many small holes that allow water or air to pass through slowly |
| germ free | no germ |
| relish | to get great pleasure from sth; to want very much to do or have sth |
| dazzle | 1. if a strong lightdazzles you, it is so bright that you cannot see for a short time
2. to impress sb a lot with your beauty, skill, etc. |
| insulate | to protect sth with a material that prevents heat, sound, electricity, etc. from passing through |
| restrict | to limit the size, amount or range of sth |
| drab | without interest or colour; dull and boring |
| renaissance | the period in Europe during the 14th, 15th and 16th centuries when people became interested in the ideas and culture of ancient Greece and Rome and used these influences in their own art, literature, etc. |
