- 1三葉蟲（古生代的海洋節肢動物化石，比恐龍還早滅絕）。
A small sea animal that lived hundreds of millions of years ago and died out long before the dinosaurs. Nobody has ever seen a living one — what we have are the fossils, and they are everywhere, which is why the word exists at all. The animal looked a little like a or a horseshoe crab: a flat oval body with a hard shell, divided down its length into three long strips, and divided across into many small segments. That three-part split is what the name is about.
In English the word is used the way a scientific name is used, but ordinary people say it too — museum labels, children's fossil books, rock shops. It is a countable noun (a trilobite, two trilobites), and you will often hear 'a trilobite fossil' even though the fossil is really all that is left.
Say it TRY-luh-bite.
組成tri-（三）+ lobe（葉、圓塊）+ -ite（化石／礦物的字尾）→「有三片葉的東西」。借自學名 Trilobita。
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
trilobitenoun/ˈtɹaɪ.ləˌbaɪt/
- 1
An extinct arthropod of the class Trilobita, whose body had three large lobes.
- When you look at a Precambrian trilobite in the lobby of a New York bank, it is difficult to speculate about its primeval environment.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。