What is the definition of palezoic era in tagalog?

There's no direct, single-word translation for "Paleozoic Era" in Tagalog. However, you can express it by using descriptive phrases:

* Panahon ng Paleozoic (literally: Paleozoic Time)

* Panahon ng mga Sinaunang Buhay (literally: Time of Ancient Life)

The second phrase is more accurate, as it reflects the defining characteristic of the Paleozoic Era: the emergence and diversification of early life forms.

Here's a more complete explanation:

* Paleozoic comes from the Greek words "palaios" (ancient) and "zoe" (life).

* It refers to a geological era spanning from 541 million to 252 million years ago, marked by significant evolutionary events like the Cambrian Explosion and the rise of the first vertebrates.

When discussing the Paleozoic Era in Tagalog, using these descriptive phrases will convey the meaning effectively.