compoundcom‧pound1 /ˈkɒmpaʊnd $ ˈkɑːm-/ ●●○AWL noun [countable] 🔊 🔊 1HCC technical a substancecontainingatoms from two or more elements → element 🔊 man-made organic compoundscompound of 🔊 Sulphur dioxide is a compound of sulphur and oxygen.2MIXa combination of two or more parts, substances, or qualitiescompound of 🔊 Teaching is a compound of several different skills. 🔊 Brush on a damp-proofing compound.3TBBan area that contains a group of buildings and is surrounded by a fence or wall 🔊 a prison compound4SLG technical a noun, adjective etc that is made up of two or more words. The noun ‘flowershop’ and the adjective ‘self-made’ are compounds.COLLOCATIONSADJECTIVES/NOUN + compoundan organic compound (=containing carbon)the organic compounds of which living things are madean inorganic compound (=not containing carbon)a chemical compound (=formed by a chemical process involving two or more elements)a carbon/nitrogen/sulphur etc compoundUse a copper compound to protect the trees from pests.a toxic/dangerous compound (=containing poisonous or harmful substances)toxic compounds such as heavy metalsverbsform a compoundAtoms combine in specific ways to form chemical compounds.a compound contains somethingThis compound contains two atoms of nitrogen and four atoms of hydrogen.
compoundcom‧pound2 /kəmˈpaʊnd/AWL verb [transitive] 🔊 🔊 1WORSEto make a difficult situation worse by adding more problemscompound a problem/difficulty etc 🔊 Helmut’s problems were compounded by his lack of concentration.2British English to make a bad action worse by doing more bad thingscompound a crime/an offence etc 🔊 He compounded the offence by calling his opponents liars.3 →be compounded of something4American EnglishBF to pay interest that is calculated on both the sum of money and the interest 🔊 Interest is compounded quarterly.→ See Verb table
compound• First, insects have compound eyes consisting of up to several thousand opticalunits called ommatidia, each with a singlelens.• The present-value formula may be derived directly from the compound interest formula.• But the precisefigure would be 10.7 per cent because of the effect of compound interest.From Longman Business Dictionarycompoundcom‧pound /kəmˈpaʊndkɑːmˈpaʊnd, ˈkɑːmpaʊnd/ verb [transitive] American EnglishFINANCE to pay interest on both a sum of money and the interest already earned on itMy bank compounds interest quarterly.→ See Verb table