LAMARCKISM n.
The theory that structural variations, characteristic of species and genera, are produced in animals and plants by the direct influence of physical environments, and esp., in the case of animals, by effort, or by use or disuse of certain organs.
LAMPREY n.
An eel-like marsipobranch of the genus Petromyzon, and allied genera. The lampreys have a round, sucking mouth, without jaws, but set with numerous minute teeth, and one to three larger teeth on the palate (see Illust. of Cyclostomi). There are seven small branchial openings on each side. [Written also lamper eel, lamp…
LANDSCAPE n. 3 definitions
cture representing a scene by land or sea, actual or fancied, the chief subject being the general aspect of nature, as fields, hills, forests, water. etc.
LARAMIE GROUP n.
on, as in the Laramie Mountains, and formerly supposed to be of the Tertiary age, but now generally regarded as Cretaceous, or of intermediate and transitional character. It contains beds of lignite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.
LARK n. 4 definitions
Any one numerous species of singing birds of the genus Alauda and allied genera (family Alaudidæ). They mostly belong to Europe, Asia, and Northern Africa. In America they are represented by the shore larks, or horned by the shore larks, or horned larks, of the genus Otocoris. The true larks have holaspidean tarsi, ver…
LAST n. 15 definitions
A load; a heavy burden; hence, a certain weight or measure, generally estimated at 4,000 lbs., but varying for different articles and in different countries. In England, a last of codfish, white herrings, meal, or ashes, is twelve barrels; a last of corn, ten quarters, or eighty bushels, in some parts of England, twent…
LAWYER n. 4 definitions
n or defence of lawsuits, or as to legal rights and obligations in other matters. It is a general term, comprehending attorneys, counselors, solicitors, barristers, sergeants, and advocates.