MORTAR n.
, etc., at high angles of elevation, as 45º, and even higher; - - so named from its resemblance in shape to the utensil above described. Mortar bed (Mil.), a framework of wood and iron, suitably hollowed out to receive the breech and trunnions of a mortar. -- Mortar boat or vessel (Naut.), a boat strongly built and ad…
MYRTLE n.
ght or ten feet high. Its branches form a close, full head, thickly covered with ovate or lanceolate evergreen leaves. It has solitary axillary white or rosy flowers, followed by black several-seeded berries. The ancients considered it sacred to Venus. The flowers, leaves, and berries are used variously in perfumery an…
OPERA n.
Ginger family, sometimes seen in hothouses. It has curious flowers which have some resemblance to a ballet dancer, whence the popular name. Called also dancing girls. -- Opera glass, a short telescope with concave eye lenses of low power, usually made double, that is, with a tube and set of glasses for each eye; a lo…