biofuelbi‧o‧fu‧el /ˈbaɪəʊˌfjuːəl $ ˈbaɪoʊ-/ noun [countable, uncountable] 
a substance made from plants or animal waste that can be used to produce heat or power
a substance made from plants or animal waste that can be used to produce heat or power- Strasberg, Lee
- Strasbourg
- strata
- stratagem
- strategic
- strategically
- Strategic Defense Initiative
- strategist
- strategy
- Stratford-upon-Avon
- Strathclyde
- stratification
- stratified
- stratify
- stratosphere
- stratospheric
- stratum
- Strauss, Johann
- Strauss, Richard
- Stravinsky, Igor
- straw
- strawberry
- strawberry blonde
- straw-coloured
- straw poll