English-Thai Dictionary
paleozoic
A เกี่ยวกับ ยุค โบราณ เป็น ยุค ที่ เริ่ม มี ปลา และ สัตว์เลื้อยคลาน
Webster's 1913 Dictionary
PALEOZOIC
Pa `le *o *zo "ic, a. Etym: [Paleo- + Gr. (Geol.)
Defn: Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology.
PALEOZOIC ERA
PALEOZOIC ERA Pa `le *o *zo *ic e *ra, n. (Geol.)
Defn: The Paleozoic time or strata.
New American Oxford Dictionary
Paleozoic
Pa le o zo ic |ˌpālēəˈzōik ˌpeɪliəˈzoʊɪk | ▶adjective Geology of, relating to, or denoting the era between the Precambrian eon and the Mesozoic era. Formerly called primary. • (as noun the Paleozoic ) the Paleozoic era or the system of rocks deposited during it. The Paleozoic lasted from about 570 million to 245 million years ago, its end being marked by mass extinctions. The Lower Paleozoic sub-era comprises the Cambrian, Ordovician, and Silurian periods, and the Upper Paleozoic sub-era comprises the Devonian, Carboniferous, and Permian periods. The era began with the first invertebrates with hard external skeletons, notably trilobites, and ended with the rise to dominance of the reptiles. ORIGIN mid 19th cent.: from paleo- ‘of prehistoric times ’ + Greek zōē ‘life ’ + -ic .
Spanish Dictionary
paleozoico, -ca
paleozoico, -ca adjetivo /nombre masculino 1 geol [era geológica ] Que sigue a la era precámbrica y precede a la era mesozoica o secundaria; se extiende desde hace unos 570 millones de años hasta hace unos 230 -245 millones de años :el paleozoico se divide en seis períodos: cámbrico, ordovícico, silúrico, devónico, carbonífero y pérmico .SINÓNIMO primario .2 adjetivo geol De esta era geológica o que tiene relación con ella :terreno paleozoico .SINÓNIMO primario .
The Wordsmith Dictionary