disinfect
dis-in-FEKT
/ˌdɪs.ɪnˈfekt/
To clean something using chemicals that kill pathogens and bacteria.
Disinfect implies the use of strong chemical agents (like bleach or alcohol) to destroy harmful microorganisms on inanimate objects.
The story behind the word. Formed by combining the Latin prefix 'dis-' (expressing reversal) with 'infectus' (from 'inficere', meaning to stain, dye, or corrupt). Literally, to disinfect is to 'undo the corruption' or stain of disease.
Word relationships
- sanitize: Disinfecting kills a higher percentage of germs (virtually all of them), whereas sanitizing reduces germs to a safe level but may not eliminate them entirely.
- sterilize: Sterilizing is an extreme laboratory process that destroys all forms of microbial life, including spores, which disinfectants might miss.
- infect: Infect means to contaminate with disease-producing organisms.
- contaminate: Contaminate means to make impure by contact or mixture.
Commonly confused with
- antiseptic: Disinfectants are used on non-living surfaces (like counters), while antiseptics are safe for living tissue (like skin).
Word family
- disinfectant (noun): A chemical liquid that destroys bacteria.
- disinfection (noun): The process of cleaning something with a chemical to destroy bacteria.
Collocations
- disinfect surfaces
- disinfectant spray
- thoroughly disinfect
- disinfect wipes
Example sentences
- "Nurses must disinfect the patient's bedside table daily to prevent the spread of infections." A hospital hygiene protocol.
- "Be sure to disinfect the doorknobs and light switches if someone in the house has the flu." A guide to cleaning after an illness.
Memory hook
Think of 'dis-infect' as 'disconnecting' the 'infection'. Disinfect to dismiss the infection.
When not to use
Do not use on living tissue (use 'antiseptic' instead) or for simple physical cleaning like sweeping.
Fun facts
- Before the germ theory of disease was established in the 19th century, people tried to 'disinfect' air using strong-smelling herbs, believing that bad smells (miasma) caused sickness.
Explore more words
bleach, sterilize, decontamination, Antiseptic, chlorinated, sterile
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