Definition of Lastex in English:

Lastex

noun

historical
  • A yarn formed from a combination of an elastic material with a fibre thread, used in the manufacture of corsetry, swimwear, etc.

Origin

1930s; earliest use found in The New York Times. Probably an alteration of latex after elastic, although perhaps compare names of fabrics with the ending -tex, as e.g. Aertex.

Pronunciation

Lastex

/ˈlastɛks/