Definition

Relating to the fourth position in the structure of an organic molecule from a specific group or atom.

Example

In the study of organic chemistry, the delta position is crucial for understanding molecular behavior.

Conversation

I was studying organic chemistry and came across the term delta in one of the compounds.

Oh really? What does delta refer to in that context?

It describes the fourth position in the structure of a molecule from a specific atom.

That's interesting! Chemistry has so many unique terms.

Synonyms & Antonyms

Definition

A landform that is typically shaped like a triangle, formed by the accumulation of sediment at the mouth of a river where it meets a larger body of water.

Example

The delta of the river is a rich area for wildlife and plants.

Conversation

Have you ever seen a river delta up close?

No, I haven't, but I've heard they're beautiful.

Yeah, they form these amazing triangular shapes at the mouth of rivers.

Root Explanation

**Delta** → The word 'delta' comes from the Greek letter 'Δ' (delta), which is shaped like a triangle. The term is used in geography to refer to a landform at the mouth of a river where it splits into several streams, resembling the triangular shape of the letter. Thus, 'delta' signifies a triangular landform created by sediment deposits.

Memory Tip

Picture the triangular shape of the Greek letter 'Δ' to remember that a delta is a landform shaped like a triangle at the mouth of a river.

Visually Confused Words