vector
VEK-ter
/ˈvek.tər/
An organism (such as an insect) that transmits a pathogen from one host to another; or a quantity/course having direction and magnitude in physics/navigation.
In biodefense, refers to living organisms (e.g., mosquitoes, fleas) or delivery vehicles engineered to transport pathogens into target populations.
The story behind the word. Directly from Latin 'vector' (a carrier or driver), derived from 'vehere' (to carry or transport). In the 19th century, epidemiologists adopted the term for organisms carrying pathogens from host to host.
Word relationships
- carrier: Carrier can refer to an infected host carrying disease silently, whereas vector usually implies an organism active in transferring disease.
- transmitter: Transmitter is a broad term for anything passing a signal or disease, while vector carries technical biological or directional precision.
Commonly confused with
- vehicle: In epidemiology, a vehicle is an inanimate medium (water, food, doorknob), while a vector is a living organism (mosquito, tick, flea).
Word family
- vectorial (adjective): Pertaining to a vector or direction of transmission.
Collocations
- disease vector
- biological vector
- vector control
- vector-borne
Example sentences
- "Fleas served as the primary biological vector carrying the plague pathogen during historical siege warfare." Epidemiological Intelligence
- "Unmanned aerial vehicles were tested as a possible vector for delivering aerosolized payloads over enemy territory." Delivery Systems
Memory hook
VEHICLE and VECTOR both come from carrying things from A to B. The carrier.
When not to use
Do not confuse the biological sense (organism transmitting pathogen) with the mathematical sense (magnitude and direction) in casual context.
Fun facts
- Mosquitoes are considered the deadliest biological vector on Earth, transmitting diseases that kill over 700,000 people annually.
Related words
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