LICHEN n.
by means of spores. The species are very widely distributed, and form irregular spots or patches, usually of a greenish or yellowish color, upon rocks, trees, and various bodies, to which they adhere with great tenacity. They are often improperly called rock moss or tree moss.
MINERAL a.
made chiefly of some natural mineral substance, as red or yellow iron ocher. -- Mineral patch. See Bitumen, and Asphalt. -- Mineral right, the right of taking minerals from land. -- Mineral salt (Chem.), a salt of a mineral acid. -- Mineral tallow, a familiar name for hatchettite, from its fatty or spermaceti-like…
MOCKING a.
the notes of other birds. Its back is gray; the tail and wings are blackish, with a white patch on each wing; the outer tail feathers are partly white. The name is also applied to other species of the same genus, found in Mexico, Central America, and the West Indies. -- Mocking thrush (Zoöl.), any species of the genus…
MUCOUS a.
bstance; as, the mucous membrane. Mucous membrane. (Anat.) See under Membrane. -- Mucous patches (Med.), elevated patches found in the mucous membranes of the mouth and anus, usually due to syphilis. -- Mucous tissue (Anat.), a form of connective tissue in an early stage of development, found in the umbilical cord an…
PACKET n. 3 definitions
Originally, a vessel employed by government to convey dispatches or mails; hence, a vessel employed in conveying dispatches, mails, passengers, and goods, and having fixed days of sailing; a mail boat. Packet boat, ship, or vessel. See Packet, n., 2. -- Packet day, the day for mailing letters to go by packet; or the s…
PNEUMATIC; PNEUMATICAL a.
in an organ, by causing compressed air from the wind chest to move them. -- Pneumatic dispatch, a system of tubes, leading to various points, through which letters, packages, etc., are sent, by the flow and pressure of air. -- Pneumatic elevator, a hoisting machine worked by compressed air. -- Pneumatic pile, a tubu…