LEAF n.
and helmet beetle. -- Leaf bridge, a draw-bridge having a platform or leaf which swings vertically on hinges. -- Leaf bud (Bot.), a bud which develops into leaves or a leafy branch. -- Leaf butterfly (Zoöl.), any butterfly which, in the form and colors of its wings, resembles the leaves of plants upon which it rest…
LEPTOCARDIA n.
The lowest class of Vertebrata, including only the Amphioxus. The heart is represented only by a simple pulsating vessel. The blood is colorless; the brain, renal organs, and limbs are wanting, and the backbone is represented only by a simple, unsegmented notochord. See Amphioxus. [Written also Leptocardii.]…
LETTER n.
t he has regularly ordained a certain person as priest, deacon, etc. -- Letters patent, overt, or open (Eng. Law), a writing executed and sealed, by which power and authority are granted to a person to do some act, or enjoy some right; as, letters patent under the seal of England. -- Letter-sheet envelope, a stamped…
LIFTING a.
y to the top of the pump, or delivers it through a spout; a lift pump. -- Lifting rod, a vertical rod lifted by a rock shaft, and imparting motion to a puppet valve; -- used in the engines of river steamboats. -- Lifting sail (Naut.), one which tends to lift a vessel's bow out of water, as jibs and square foresails.…