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Pertaining to, consisting of, or resembling, membrane; as, a membranous covering or lining.

An iron-black or steel-gray mineral, consisting chiefly of the oxides of iron and titanium. It is commonly massive, but occurs also in rhombohedral crystals. Called also titanic iron ore, and ilmenite.

gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, mercury.

An ovum, as that of a mammal, only partially composed of germinal matter, that is, consisting of both a germinal portion and an albuminous or nutritive one; -- opposed to holoblast.

Consisting only in part of germinal matter; characterized by partial segmentation only; as, meroblastic ova, in which a portion of the yolk only undergoes fission; meroblastic segmentation; -- opposed to holoblastic.

The membranes, or one of the membranes (consisting of a fold of the peritoneum and inclosed tissues), which connect the intestines and their appendages with the dorsal wall of the abdominal cavity. The mesentery proper is connected with the jejunum and ilium, the other mesenteries being called mesoc, mesocolon, mesorec…

The middle layer of a pericarp which consists of three distinct or dissimilar layers. Gray.

part of the skeleton of the hand or forefoot between the carpus and phalanges. In man it consists of five bones. See Illust. of Artiodactyla.

s compared with gold or silver. -- Fusible metal (Metal.), a very fusible alloy, usually consisting of bismuth with lead, tin, or cadmium. -- Heavy metals (Chem.), the metallic elements not included in the groups of the alkalies, alkaline earths, or the earths; specifically, the heavy metals, as gold, mercury, platin…

of the skeleton of the hind or lower limb between the tarsus and phalanges; metatarse. It consists, in the human foot, of five bones. See Illustration in Appendix.

t, second, and fourth having each three feet, and the third four feet. The stanza usually consists of four lines, but is sometimes doubled. Short meter is indicated by the initials S.M.

-- Methyl orange. (Chem.) See Helianthin. -- Methyl violet (Chem.), an artificial dye, consisting of certain methyl halogen derivatives of rosaniline.

, CH2Br2; -- formerly called also methene. Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also pure blue.

Of or pertaining to the meter; arranged in meter; consisting of verses; as, metrical compositions.

An instrument consisting of a short pendulum with a sliding weight. It is set in motion by clockwork, and serves to measure time in music.

A mineral of an iron-black color, and very sectile, consisting principally of sulphur, antimony, and silver.

Partaking of the nature of, or consisting of, mica and lime; -- applied to a mica schist containing carbonate of lime.

Crystalline on a fine, or microscopic, scale; consisting of fine crystals; as, the ground mass of certain porphyrics is microcrystalline.

An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked eye. Compound microscope, an instrument consisting of a combination of lenses such that the image formed by the lens or set of lenses nearest the object (called…

luid secreted by the mammary glands of female mammals for the nourishment of their young, consisting of minute globules of fat suspended in a solution of casein, albumin, milk sugar, and inorganic salts. "White as morne milk." Chaucer.