00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells. |
| an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language. |
periodontal per·i·o·don·tal (pěr'ē-ə-dŏn'tl)
adj.
Surrounding or encasing a tooth.
Relating to or affecting tissues and structures surrounding and supporting the teeth.