[1:11] Gaokao English Listening Essential: First Aid | Master 3500 Words with Immersive Listening

adj

1. marked by deep ill will
deliberately harmful

e.g. poisonous hate
venomous criticism
vicious gossip

Synonym: venomousvicious

2. not safe to eat

3. having the qualities or effects of a poison

Synonym: toxicant

noun

1. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

Synonym: radiotherapyradiation therapyactinotherapyirradiation

2. the act of spreading outward from a central source

3. a radial arrangement of nerve fibers connecting different parts of the brain

4. the spread of a group of organisms into new habitats

5. energy that is radiated or transmitted in the form of rays or waves or particles

6. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

Synonym: radioactivity

7. syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions)
low doses cause diarrhea and nausea and vomiting and sometimes loss of hair
greater exposure can cause sterility and cataracts and some forms of cancer and other diseases
severe exposure can cause death within hours

e.g. he was suffering from radiation

Synonym: radiation sicknessradiation syndrome

adj

1. characteristic of false pride
having an exaggerated sense of self-importance

e.g. a conceited fool
an attitude of self-conceited arrogance
an egotistical disregard of others
so swollen by victory that he was unfit for normal duty
growing ever more swollen-headed and arbitrary
vain about her clothes

Synonym: conceitedegotisticegotisticalself-conceitedswollen-headedvain