Definition

A remaining part or substance after other parts have been removed or separated.

Example

After the experiment, the residuum was analyzed for any useful compounds.

Conversation

Have you ever heard of the term residuum?

Yeah, it refers to what’s left over after something is removed, right?

Exactly! It’s like the leftover stuff after a process, such as distillation.

That makes sense — I guess we encounter residuum in various contexts.

Synonyms & Antonyms

Root Explanation

Residuum → It is formed from "re-" (meaning back or again) and "sedere" (meaning to sit). The word refers to what remains or sits back after a process, such as a chemical reaction.

Memory Tip

Think of something that 'sits back' ('sedere') after a process, which helps you remember that 'residuum' means what remains.

Visually Confused Words