Meanings

open-back headphones

closed-back headphones

blood type incompatibility

type (of a disease)

model train enthusiast

dome-shaped

model train

noninvasive prenatal testing

post-acute sequelae of COVID-19

making a mold

model shop (selling model trains, etc.)

human figure

model number

derived type

imperative programming

enumerated type

value type

reference type

smaller version

imperative