This post focuses on a shortlist of some most common words used in IELTS Writing, Speaking, Reading and Listening. Here, IELTS candidates can learn and practice science and technology-related words and phrases. All the words are given here with definitions/meanings and their use in example sentences. This vocabulary list will help you write essays and speak on new inventions, research, technology and science-related topics etc.
Vocabulary list on ‘Science and Technology’:
Attribute – a quality or feature regarded as a characteristic or inherent part of someone or something – His attributes such as honesty and helpfulness has made him a special person.
Apex – tip; summit; the highest part or top of something, particularly one forming a point – The apex of an Egyptian pyramid is different from a Mayan pyramid.
Broadband – a dynamic transmission system that uses a broader range of frequencies, which enables a big chunk of messages to be communicated at the same time – Although she doesn’t have wireless Internet, she has a broadband connection.
Butterfly effect / Chaos theory – the phenomenon whereby a minute localized change in a compound system can have great effects elsewhere – The phrase ‘Butterfly Effect’ refers to the likelihood that very small, seemingly insignificant changes (such as a butterfly flapping its wings) might create large, unexpected events elsewhere.
Computer literacy – level of knowledge with the basic hardware and software (and now Internet) concepts that lets a person to use computers for data entry, word processing, spreadsheets, and electronic communications – Nowadays most company want people with computer literacy.
Consciousness – the state of being aware of and responsive to one’s surroundings – The patient had regained consciousness this afternoon.
Coordination – the association of the different components of a complex body or actions so as to enable them to team up efficiently – The app’s coordination with other software is remarkable.
Creativity – the utilization of imagination or original ideas to generate something; inventiveness – The professor admired the creativity that prevailed among the group of young scientists.
Database/ databank – a structured set and mainly a very large sum of data held in a computer, particularly one that is accessible in different ways – The log in the organization’s database/databank by outsiders is illegal.
Device/ tech gadget – a thing made or adapted for a particular reason, mainly a piece of automatic or electronic gear – This particular device/ tech gadget can easily access your smartphone to track your location.
Digital – a rain or any other form of precipitation that is unusually acidic – The report shows that acidity of soil in that region was caused by acid rain.
Discover – find out something or some place for the first time – The team of astrophysicists discovered a new comet recently.
Domino effect – also known as chain reaction, is the cumulative effect produced when one event sets off a chain of similar events – The successful implementation of the project will create a positive domino effect and gradually develop the area.
Evidence – proof of something or some action – There are hundreds of scientific evidences to prove that the device did not work appropriately.
Experiment – a scientific process taken on making a discovery, test a hypothesis, or demonstrate a known fact – The Company had to shut down their experiment on monkeys to obey the ruling.
Furnace – an enclosed structure in which material can be heated to very high temperatures, e.g. for smelting metals – This furnace is used for producing lead.
Genetically modified – (of an organism or crop) containing genetic substances that has been synthetically altered so as to create a desired trait – There was controversial debate over the utilization of genetically modified crops.
Harness – a piece of equipment with straps and belts, used to control or hold in place a person, animal, or object – She fastened the safety harness firmly round her waist prior to starting the drop.
Horizontal – parallel to the flat surface of the horizon; at right angles to the vertical – The machine had a horizontal arm fixed to a vertical shaft.
Hormone – a regulatory material formed in an organism and transported in tissue fluids such as blood or sap to stimulate particular cells or tissues into work – The rude behaviour among some pregnant women is triggered by hormones.
Invention – creation of something – The invention of computer has changed the course of human civilization.
Mechanism – a system of parts working together in a machine – The reproductive mechanism in these special cells is remarkable.
Mediocre – of only average quality; not very good – In spite of being a mediocre student at best, Thomas had thrived on science and turned out to be the most successful biologist.
Neuroscience – the scientific study of the nervous system – She studied about neuroscience research on monkeys in her third year in the medical school.
Niche – denoting or relating to products, services, or interests that attract a tiny, specialized section of the demographics – Many people try to find their niche in the job market but fail to get that easily.
Nutrition – food or nourishment – The kittens lacked nutrition and suffered a lot.
Peripheral – on or near an edge or constituting an outer boundary; the outer area – His peripheral vision showed that an auto was trying to pass him.
Physiology – the branch of biology that handles the regular functions of living organisms and their parts – Doctors are experts in human anatomy and physiology.
Placebo-effect – An amazing phenomenon in which a placebo – a fake treatment, an inactive substance like sugar, distilled water or saline solution – can at times develop a patient’s state simply due to the person’s expectation that the medicine will be helpful – The doctor is hopeful about the patient’s quick recovery learning about the placebo-effect.
Plausible – (of an argument or statement) apparently sensible or probable – The scientists could find no plausible explanation for the disappearance of those wild-birds.
Predictable – able to be known, seen, or declared in advance – These recent diseases follow an extremely predictable pattern.
Psychology – the scientific study of the human mind and its activities, particularly those affecting behaviour in a specified context – She was a great author of human psychology and metaphysics.
Pulley – a wheel with a wavy rim around which a string passes, which changes the direction of a force applied to the string and is used to lift heavy weights – Ancient waterholes or wells did not have pulley system; so a heavy bucket was usually thrown with a firm string to collect water.
Selfie – a photograph taken by oneself, typically with a smartphone or webcam and shared via social media – Nowadays young people like to take selfies a lot.
Space exploration – the use of astronomy and space technology to investigate outer space – Space exploration in this century has progressed way more than the last century.
Specialist – expert; a person who focuses mainly on a specific subject or activity; a person extremely skilled in a particular and restricted field – Younan Nowzaradan is an Iranian-American vascular surgery specialist.
Stimulate – raise levels of physiological or nervous activity in (the body or any biological system) – Some free-hand exercise may stimulate your muscles.
Surveillance – close observation; careful watching – The Chief of Police has assigned a surveillance team in the red-light areas.
Systematically – according to a fixed plan or system; methodically – Computers will scan all the data systematically every week using this software.
Techie – a person who is expert in or enthusiastic about technology, especially computing – My cousin is a techie and he specialized in graphic design.
Technophobe – a person who fears, dislikes, or avoids new technology – Hannah is a technophobe and so she’s not going to attend the digital conference.
Trait – a distinguishing quality or characteristic, typically one belonging to a person – They examined every trait of the selected persons.
Trigger – cause (a device) to function – He accidentally triggered the alarm.
Upgrade – develop (something) to a higher standard, especially (equipment or machinery) by adding or replacing components – The company has upgraded its software to control the robotics department better.
Vertical – standing or pointing directly up or at an angle of 90° to a horizontal surface or line – He placed the apples on the top of a vertical wall.
Website – a set of related web pages positioned under a single domain name – www.ieltsdeal.com is a website related to the IELTS course.
Weight – a measure of the heaviness of an object – After doing some exercise for a week his weight became perfect.
Wireless – using radio, microwaves, etc. (instead of wires or cables) to transmit signals – Wireless internet is not available in many places up till now.