pachyderm

n. large and thick-skinned mammal (especially an elephant, rhinoceros, etc.); insensitive person

For the recording studio, see Pachyderm Studio The Pachydermata (meaning "thick skin") is an obsolete order of mammals described by Georges Cuvier and at one time recognised by many systematists. Because it is polyphyletic, the order Pachydermata is no longer in use, but it is important in the history of systematics. Although it is often described as an artificial grouping of unrelated mammals, it was recognised as a grade of hooved mammals to the exception of other Ungulates by zoologists such as Charles Darwin, and anatomical characters do support the affinities of "Pachyderm" mammals to each other and to other Ungulates.
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Noun
1. any of various nonruminant hoofed mammals having very thick skin: elephant; rhinoceros; hippopotamus
(hypernym) placental, placental mammal, eutherian, eutherian mammal
(part-meronym) thick skin

(n.)
One of the Pachydermata.
  

pachyderm /'pækidə:m/
danh từ (động vật học) loài vật da dày con voi (nghĩa bóng) người mặt dày mày dạn, người không biết nhục
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