nutrient - živina

noun - a chemical present in food etc. that organisms need to stay alive and grow

 

idiot-proof - velmi jednoduchý, snadný k pochopení, blbuvzdorný

adjective, informal - designed to be so simple or easy to use that it cannot be misused or misunderstood

 

discontent - nespokojenost

noun - the state of not being happy with your present situation and longing for something better

 

invigilation - dozor (u zkoušky)

noun - the act of being present at a written exam and checking that students aren't cheating

 

have - pomocné sloveso pro dokonavý čas (předpřítomný či předminulý apod.)

verb - the auxiliary verb used to form perfect tenses (the present perfect, the past perfect etc.)

 

in plain English - polopatě, srozumitelně, jednoduše

adverb - expressed in clear, simple language that is easy for anyone to understand, without technical or complicated terms

hamper - dárkový koš

noun, British English - a box or a package containing food of various kinds that is given as a present

 

plasma - plasma

noun - the fourth state of matter (liquid, gas, solid), it is present in stars, fusion reactors etc.