The word "clouding" refers to something becoming less clear or hard to understand, like when a situation or someone's mind becomes confusing or muddled. Full definition
In space, they gather in clouds of dust and gas, which form new stars, and for each generation of new stars, more elements are formed. (sciencedaily.com)
It is also a major provider of cloud computing services. (phys.org)
Plus I mostly rely on cloud storage so I can just download whatever book I'm reading on whatever gadget I'm using. (blog.the-ebook-reader.com)