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||Mel`a*nor*rhœ"a (?), n. [NL.,
fr. Gr. me`las, -anos, black + &?; to flow.]
(Bot.) An East Indian genus of large trees.
Melanorrhœa usitatissima is the lignum-vitæ of
Pegu, and yields a valuable black varnish.

Me*lan"o*scope (?), n. [Gr.
me`las, -anos, black + -scope.]
(Opt.) An instrument containing a combination of colored
glasses such that they transmit only red light, so that objects of
other colors, as green leaves, appear black when seen through it. It
is used for viewing colored flames, to detect the presence of
potassium, lithium, etc., by the red light which they emit.

||Mel`a*no"sis (?), [NL., fr. Gr. &?; a growing black,
fr. me`las, -anos, black.] (Med.)
The morbid deposition of black matter, often of a malignant
character, causing pigmented tumors.

Me*lan"o*sperm (?), n. [Gr.
me`las, -anos, black + spe`rma
seed.


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