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siliceous

Pronunciation: [sɪˈlɪʃ.əs]

Word

Learn how to use siliceous in a sentence: 6 audio examples across 2 meanings.

Context: “geology”

(adjective) relating to or containing silica, which is a hard mineral found in rocks and sand. When we say something is siliceous, we mean it has a lot of silica in it, making it strong and sturdy.

Example

The siliceous rocks were tough enough to withstand heavy weathering.

Example

The soft clay was not siliceous and crumbled easily under pressure.

Example

Can you identify the siliceous materials in this rock sample?

Context: “biology”

(adjective) describing certain organisms that have silica in their structures, like some types of plants or algae. This means that they have silica built into them, which can help them stay strong and survive in their environment.

Example

Diatoms are siliceous algae that are important for aquatic ecosystems.

Example

Flowering plants are not siliceous because they do not contain silica in their structures.

Example

What makes diatoms different from other types of algae in terms of being siliceous?

How to pronounce siliceous

Pronunciation: [sɪˈlɪʃ.əs]

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