Often used as an uncountable noun referring to contactless payment technology.
Definitions
contactlessadjective
Not involving or requiring physical touch or interaction.
The contactless payment system allows customers to pay by simply tapping their card on the reader.
contactlessnoun
A payment method that uses near-field communication technology to process transactions without physical contact between the card or device and the reader.
Most corner shops now accept contactless for purchases under £100.