Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “rocket science”

rocket science

noun [U]
 
 
TRANSPORT the scientific study of rockets: The technology encompasses rocket science and jet engines.
(it's) not rocket science informal used to say that you do not think that something is very difficult to do or to understand: Choosing the best pension provider is not rocket science.
(Definition of rocket science from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of rocket science?
Browse related topics

You are looking at an entry to do with Easiness and simplicity, but you might be interested in these topics from the Easy and difficult topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “rocket science” in other dictionaries

Translations of “rocket science”

Word of the Day

initial

of or at the beginning

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More