cheer|ful /tʃ I ə r fʊl/
1 ADJ Someone who is cheerful is happy and shows this in their behaviour. □ They are both very cheerful in spite of their colds. □ [+ about ] Jack sounded quite cheerful about the idea. ● cheer|ful|ly ADV [ADV with v] □ 'We've come with good news,' Pat said cheerfully. □ She greeted him cheerfully. ● cheer|ful|ness N‑UNCOUNT [oft adj N ] □ I remember this extraordinary man with particular affection for his unfailing cheerfulness.
2 ADJ Something that is cheerful is pleasant and makes you feel happy. □ The nursery is bright and cheerful, with plenty of toys.
cheerio /tʃ I ə rioʊ / CONVENTION People sometimes say ' Cheerio ' as a way of saying goodbye. [BRIT , INFORMAL , FORMULAE ]
cheer|leader /tʃ I ə r liːdə r / (cheerleaders ) N‑COUNT A cheerleader is one of the people who leads the crowd in cheering at a large public event, especially a sports event.
cheer|less /tʃ I ə r ləs/ ADJ Cheerless places or weather are dull and depressing. □ The kitchen was dank and cheerless. □ …a bleak, cheerless day.
cheery /tʃ I ə ri/ (cheerier , cheeriest ) ADJ If you describe a person or their behaviour as cheery , you mean that they are cheerful and happy. □ She was cheery and talked to them about their problems. ● cheeri|ly ADV □ 'Come on in,' she said cheerily.
cheese ◆◇◇ /tʃiː z/ (cheeses )
1 N‑VAR Cheese is a solid food made from milk. It is usually white or yellow. □ …bread and cheese. □ …cheese sauce. □ He cut the mould off a piece of cheese. □ …delicious French cheeses.
2 → see also cottage cheese , cream cheese , goat cheese , macaroni cheese
3 as different as chalk and cheese → see chalk
cheese|board /tʃiː zbɔː r d/ (cheeseboards ) also cheese board N‑COUNT [usu sing] A cheeseboard is a board from which cheese is served at a meal.
cheese|burg|er /tʃiː zbɜː r gə r / (cheeseburgers ) N‑COUNT A cheeseburger is a flat round piece of cooked meat called a burger with a slice of cheese on top, served in a bread roll.
cheese|cake /tʃiː zke I k/ (cheesecakes ) N‑VAR Cheesecake is a dessert that consists of a base made from broken biscuits covered with a soft sweet mixture containing cream cheese.
cheese|cloth /tʃiː zklɒθ, [AM ] -klɔːθ/ N‑UNCOUNT Cheesecloth is cotton cloth that is very thin and light. There are tiny holes between the threads of the cloth. □ …cheesecloth shirts.
cheesed off /tʃiː zd ɒ f/ ADJ [v-link ADJ ] If you are cheesed off , you are annoyed, bored, or disappointed. [BRIT , INFORMAL ] □ [+ by ] Jean was thoroughly cheesed off by the whole affair.
cheesy /tʃiː zi/ (cheesier , cheesiest )
1 ADJ [usu ADJ n] Cheesy food is food that tastes or smells of cheese. □ …cheesy biscuits.
2 ADJ If you describe something as cheesy , you mean that it is cheap, unpleasant, or insincere. [INFORMAL , DISAPPROVAL ] □ …a cheesy Baghdad hotel. □ Politicians persist in imagining that 'the people' warm to their cheesy slogans.
chee|tah /tʃiː tə/ (cheetahs ) N‑COUNT A cheetah is a wild animal that looks like a large cat with black spots on its body. Cheetahs can run very fast.
chef /ʃe f/ (chefs ) N‑COUNT A chef is a cook in a restaurant or hotel.
chemi|cal ◆◆◇ /ke m I k ə l/ (chemicals )
1 ADJ [ADJ n] Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of. □ …chemical reactions that cause ozone destruction. □ …the chemical composition of the ocean. □ …chemical weapons. ● chemi|cal|ly /ke m I kli/ ADV [ADV with v, ADV adj] □ …chemically-treated foods. □ The medicine chemically affects your physiology.
2 N‑COUNT [usu pl] Chemicals are substances that are used in a chemical process or made by a chemical process. □ The whole food chain is affected by the over-use of chemicals in agriculture. □ …the chemical industry.
che mi|cal en|gi|nee r (chemical engineers ) N‑COUNT A chemical engineer is a person who designs and constructs the machines needed for industrial chemical processes.
che mi|cal en|gi|nee r|ing N‑UNCOUNT Chemical engineering is the designing and constructing of machines that are needed for industrial chemical processes.
che|mise /ʃəmiː z/ (chemises ) N‑COUNT A chemise is a long, loose piece of underwear worn by women in former times.
chem|ist /ke m I st/ (chemists )
1 N‑COUNT A chemist or a chemist's is a shop where drugs and medicines are sold or given out, and where you can buy cosmetics and some household goods. [BRIT ] □ There are many creams available from the chemist which should clear the infection.
2 N‑COUNT A chemist is someone who works in a chemist's shop and is qualified to prepare and sell medicines. [BRIT ] in AM, use druggist , pharmacist 3 N‑COUNT A chemist is a person who does research connected with chemistry or who studies chemistry. □ She worked as a research chemist.
chem|is|try /ke m I stri/
1 N‑UNCOUNT Chemistry is the scientific study of the structure of substances and of the way that they react with other substances.
2 N‑UNCOUNT The chemistry of an organism or a material is the chemical substances that make it up and the chemical reactions that go on inside it. □ [+ of ] We have literally altered the chemistry of our planet's atmosphere. □ Stress has a profound effect on our body chemistry.