tropic
word
Definition
A tropic is either of the two parallel lines on the Earth — the Tropic of Cancer and the Tropic of Capricorn — which mark the most northern and southern points where the sun is directly overhead at noon.
Usage & Nuances
Used mainly in geography and science. 'The tropics' (plural) refers to the region between these lines, not just the lines themselves. Only the singular 'tropic' refers specifically to the lines: 'Tropic of Cancer', 'Tropic of Capricorn'. Not to be confused with 'tropical' (adjective for the region or climate).
Example Sentences
The Tropic of Cancer passes through Mexico.
basic
Earth has two important tropics.
basic
The tropic marks where the sun is overhead at noon.
basic
If you travel south, you'll cross the Tropic of Capricorn.
natural
Many tropical animals live between the tropics.
natural
Australia is famous for the Great Barrier Reef, which lies near the Tropic of Capricorn.
natural