MEDIASTINE

Me`di*as"tine, Me`di*as*ti"num, n. Etym: [NL. mediastinum, fr. L. medius middle; cf. mediastinus helper, a menial servant, LL. mediastinus equiv. to medius: cf F. médiastin.] (Anat.)

Definition: A partition; a septum; specifically, the folds of the pleura (and the space included between them) which divide the thorax into a right and left cavity. The space included between these folds of the pleura, called the mediastinal space, contains the heart and gives passage to the esophagus and great blood vessels.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

29 June 2024

INITIALISM

(noun) an abbreviation formed from the initial letters of the several words in the name and pronounced separately; “HTML is an initialism for HyperText Markup Language”


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Coffee Trivia

There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.

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