B2 Unit 83: Science & technology 4
18 B2 words: pH, desktop, particle, unlock, browser, prompt… Learn them in 4 steps, then review them every day.
Word list
| Word | Meaning | Example | |
|---|---|---|---|
| pH/ˈpiˈeɪtʃ/ n | pHa measure of how acid a liquid is | Scientists test the pH of the water in the lake.Scientists test the pH of the water in the lake. | |
| desktop/ˈdɛskˌtɑp/ n | desktopthe main screen of a computer | Omar keeps his files on the desktop of his computer.Omar keeps his files on the desktop of his computer. | |
| particle/ˈpɑrtəkəl/ n | particlea very small piece of matter | Everything is made of tiny particles called atoms.Everything is made of tiny particles called atoms. | |
| unlock/ənˈlɑk/ v | to unlockto open something that was locked | Use your fingerprint to unlock the phone.Use your fingerprint to unlock the phone. | |
| browser/ˈbraʊzɚ/ n | browsera program used to look at websites | Anna opened her browser and searched for a recipe.Anna opened her browser and searched for a recipe. | |
| prompt/prɑmpt/ n/v/adj | prompta message that asks you to do something | A prompt on the screen asks you to enter a password.A prompt on the screen asks you to enter a password. | |
| zoom/zum/ n | zooma lens that makes distant things look closer | The photographer used a zoom to capture the bird far away.The photographer used a zoom to capture the bird far away. | |
| compression/kəmˈprɛʃən/ n | compressionpressing or reducing something into less space | Compression makes the video file much smaller and easier to send.Compression makes the video file much smaller and easier to send. | |
| exhaust/ɪɡˈzɔst/ n | exhaustwaste gas from an engine | Black exhaust came out of the old truck’s pipe.Black exhaust came out of the old truck’s pipe. | |
| projection/prəˈdʒɛkʃən/ n | projectionan image shown on a screen or wall | The projection on the wall showed the new sales chart.The projection on the wall showed the new sales chart. | |
| mortar/ˈmɔrtɚ/ n | mortara mix used to join bricks; also a bowl for grinding | Workers mixed sand and cement in a mortar to build the wall.Workers mixed sand and cement in a mortar to build the wall. | |
| telescope/ˈtɛləˌskoʊp/ n | telescopea tube that makes distant objects look bigger | Leo looked at the moon through his new telescope.Leo looked at the moon through his new telescope. | |
| utilize/ˈjutəˌlaɪz/ v | to utilizeto use something for a purpose | Many companies utilize new software to save time.Many companies utilize new software to save time. | |
| microphone/ˈmaɪkrəˌfoʊn/ n | microphonea device that makes voices louder or records them | Speak into the microphone so everyone can hear you.Speak into the microphone so everyone can hear you. | |
| functionality/ˌfʌŋkʃəˈnælɪti/ n | functionalitythe range of things something can do | The app’s functionality includes messages, photos and video calls.The app’s functionality includes messages, photos and video calls. | |
| broadband/ˈbrɔdˌbænd/ n | broadbandfast internet connection | Broadband lets us stream videos without waiting.Broadband lets us stream videos without waiting. | |
| retrieve/rɪˈtriv/ v | to retrieveto get something back | Ali managed to retrieve the lost photos from his old phone.Ali managed to retrieve the lost photos from his old phone. | |
| transmit/trænzˈmɪt/ v | to transmitto send signals or messages | Radio towers transmit signals over long distances.Radio towers transmit signals over long distances. |