lignosphere

Meaning

lignosphere means the part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310.... It can have more than one sense, so use the alternate meanings and examples to choose the meaning that matches your sentence.

Examples

• The article uses lignosphere to mean the part of the Earth's atmosphere beginning at an altitude of about 50....
• The teacher asked students to find lignosphere in the reading.