名詞 mammoth:

1. any of numerous extinct elephants widely distributed in the Pleistocene; extremely large with hairy coats and long upcurved tusks

形容詞 mammoth:

1. so exceedingly large or extensive as to suggest a giant or mammoth
   同義詞：gigantic

1. The mammoth fell into an ice crevasse.
   猛犸掉進(jìn)冰河裂縫里了。
2. A mammoth is a large hairy type of elephant in ancient times.
   猛犸是古代一種身體龐大、長(zhǎng)著長(zhǎng)毛的大象。

mam.moth

n.（名詞）
Any of various large, hairy, extinct elephants of the genusMammuthus, especially the woolly mammoth (M. primigenius), once widespread in the Northern Hemisphere.
猛犸：一種猛犸 屬體形大、有毛且已絕種了的象，尤指體毛發(fā)達(dá)的猛犸 （猛犸象） 曾廣泛分布于北半球
Something of great size.
龐然大物：具有碩大體積的東西
adj.（形容詞）
Of enormous size; huge.See Synonyms at enormous
龐大的：體積龐大的；巨大的參見(jiàn) enormous

來(lái)源：
Obsolete Russian mamut, mamot
已廢俄語(yǔ) mamut, mamot

<注釋>The mammoth was introduced to the English-speaking world after mammoth skeletons were discovered in Siberia,so it is no surprise that this creature`s name is taken from Russian,even though the animal roamed over Eurasia and North America.The Russian word, nowmamant` but formerlymamot as well, was borrowed into English in variant spellings.It was first recorded in 70'in the formMammuth, but in 7'3 we find the formmammon. It is said that the Russian word is a borrowing of an Ostyak word (the Ostyak people live in western Siberia),but this has not been proved.
猛犸這個(gè)詞是在西伯利亞發(fā)現(xiàn)猛犸骨骼之后才引入英語(yǔ)的，所以這種動(dòng)物的名稱起源于俄語(yǔ)也就不足為奇了，盡管這種動(dòng)物曾在歐亞大陸和北美到處游蕩。俄語(yǔ)中的這個(gè)詞，現(xiàn)在是mamant` ， 但以前為mamot ， 被引入英文時(shí)出現(xiàn)了不同的拼寫方法。最早的記載是70'年，其形式是Mammuth， 但在7'3年，其形式就變成了mammon。 據(jù)說(shuō)俄語(yǔ)這個(gè)詞也是源于一個(gè)奧斯加克語(yǔ)中一個(gè)詞（奧斯加克人居住于西伯利亞西部），但這種說(shuō)法還沒(méi)有得到證實(shí)