Definition

A part of something that is divided into a trillion equal pieces, or the position of something that is one trillionth in a sequence.

Example

The scientist measured the substance in trillionths of a gram.

Conversation

Did you know that one trillionth of a second is called a picosecond?

That's crazy! It's hard to even imagine something so short.

Yeah, it's wild how small measurements can get, isn't it?

Absolutely! It makes you think about how precise technology has become.

Synonyms & Antonyms

Root Explanation

Trillionth → It is formed from 'trillion' (from the French 'trillion', meaning a million million) and '-th' (a suffix used to indicate ordinal numbers). The word 'trillionth' refers to one part in a trillion, or the ordinal position of one trillion in a sequence.

Memory Tip

Think of 'trillion' as a million million, and remember that 'trillionth' means one part of that huge number.

Visually Confused Words