marginal ridge
11Invisalign — is a series of clear, removable teeth aligners that both orthodontists and dentists use as an alternative to traditional metal dental braces. As of April 2008, more than 730,000 patients have completed or are currently in treatment.… …
12crista marginalis — [TA] marginal ridge: a type of elevated, convex crest on a tooth; on posterior teeth they form the mesial and distal borders of the occlusal surface, and on anterior teeth they are toward the lingual side …
13abumbrellar — abumbrellar, a. Zool. (ˌæbʌmˈbrɛlə(r)) [mod. f. L. ab away from + umbrella, applied to the disk of Acalepha: cf. abactinal, aboral.] In sea blubbers: pertaining to that surface of the velum or marginal ridge, which is turned away from the… …
14Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
15United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
16Arctic Ocean — an ocean N of North America, Asia, and the Arctic Circle. ab. 5,540,000 sq. mi. (14,350,000 sq. km). * * * Arctic Ocean Introduction Arctic Ocean Background: The Arctic Ocean is the smallest of the world s five oceans (after the Pacific Ocean,… …
17North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
18Indian Ocean — an ocean S of Asia, E of Africa, and W of Australia. 28,357,000 sq. mi. (73,444,630 sq. km). * * * Indian Ocean Introduction Indian Ocean Background: The Indian Ocean is the third largest of the world s five oceans (after the Pacific Ocean and… …
19Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
20Mount Cayley volcanic field — Coordinates: 50°07′13″N 123°17′26″W / 50.12028°N 123.29056°W / 50.12028; 123.29056 …
