Meaning of BREAKTHROUGH in English

BREAKTHROUGH

transcription, транскрипция: [ ˈbrāk-ˌthrü ]

noun

Usage: often attributive

Date: 1918

1. : an offensive thrust that penetrates and carries beyond a defensive line in warfare

2. : an act or instance of breaking through an obstacle

a breakthrough agreement

3.

a. : a sudden advance especially in knowledge or technique

a medical breakthrough

b. : a person's first notable success

a breakthrough novel

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.