gnomon

/'noumɔn/

Friendly

Sure! Let's break down the word "gnomon" in a simple way.

Definition:

A gnomon is a part of a sundial, which is a tool used to tell time using the position of the sun. The gnomon is the stationary (not moving) part, usually a stick or a triangular piece that casts a shadow. The shadow it creates shows what time it is based on the position of the sun in the sky.

Usage Instructions:

• The word "gnomon" is a noun, so it is used to name this specific part of a sundial.
• You can use it when talking about sundials or shadow measurements.

Example:

• "On a sunny day, you can see the gnomon of the sundial casting a shadow that tells us it's noon."

Advanced Usage:

In mathematics, especially in geometry, "gnomon" can also refer to a figure that is formed by removing a smaller shape from a larger one.

Word Variants:

• The word "gnomonic" is an adjective derived from "gnomon." It relates to the use of gnomons, particularly in the context of timekeeping or geometry.

Different Meanings:

1. Sundial Context: The shadow-casting part of a sundial.
2. Mathematical Context: A figure created by removing a smaller shape from a larger shape.

Synonyms:

In the context of sundials, there are no direct synonyms, but you could refer to it as a "shadow stick" or "shadow indicator" informally.

Idioms and Phrasal Verbs:

There aren't any common idioms or phrasal verbs that specifically use "gnomon" since it is a technical term. However, you might encounter phrases related to time, such as "time flies" or "time waits for no one," which are more general.

Summary:

So, to sum it up, a gnomon is an important part of a sundial that helps us tell the time using shadows. It has a specific use in sundials and can also appear in mathematical discussions.

Academic

Noun

1. indicator provided by the stationary arm whose shadow indicates the time on the sundial