LANCET n.
e. Knight. Lancet arch (Arch.), a pointed arch, of which the width, or span, is narrow compared with the height. -- Lancet architecture, a name given to a style of architecture, in which lancet arches are common; -- peculiar to England and 13th century. -- Lancet fish. (Zoöl.) (a) A large, voracious, deep-sea fish (A…
LAND n.
In any surface prepared with indentations, perforations, or grooves, that part of the surface which is not so treated, as the level part of a millstone between the furrows, or the surface of the bore of a rifled gun between the grooves. Land agent, a person employed to sell or let land, to collect rents, and to attend…
LAVER n.
n laver is the Ulva latissima; purlpe laver, Porphyra laciniata and P. vulgaris. It is prepared by stewing, either alone or with other vegetables, and with various condiments; - - called also sloke, or sloakan. Mountain laver (Bot.), a reddish gelatinous alga of the genus Palmella, found on the sides of mountains…
LEAF n.
l lepidopterous and dipterous insects, which, in the larval stages, burrow in and eat the parenchyma of leaves; as, the pear-tree leaf miner (Lithocolletis geminatella). -- Leaf notcher (Zoöl.), a pale bluish green beetle (Artipus Floridanus), which, in Florida, eats the edges of the leaves of orange trees. -- Leaf r…
LENS n.
A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying visio…