watershed

1. (Australia, Ireland, New Zealand, UK)The topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest.

   Wasserscheide

   водоразде́лvodorazdél

   вододі́лvododíl

   a ridge of land that separates two adjacent river systems

2. (Canada, US)A region of land within which water flows down into a specified body, such as a river, lake, sea, or ocean; a drainage basin.

3. (figuratively)A critical point marking a change in course or development.

   watershed moment — watershed event — watershed ruling

   Wendepunkt, Zeitenwende

   перело́мный моме́нтperelómnyj momént

   an event marking a unique or important historical change of course or one on which important developments depend

4. (Canada, UK)The time of day after which material of a more adult nature (e.g., violence, swear words, or nudity) may be broadcast on television or radio, either one permitted by law or one contrived from convention (e.g. when children are not watching).

1. This is a watershed moment for the whole industry.

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2. Boston is in the Neponset River watershed.

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