INSECTA n.
æ, three pairs of mouth organs, and breathe air by means of tracheæ, opening by spiracles along the sides of the body. In this sense it includes the Hexapoda, or six-legged insects and the Myriapoda, with numerous legs. See Insect, n.
INTERVAL; INTERVALE n.
A tract of low ground between hills, or along the banks of a stream, usually alluvial land, enriched by the overflowings of the river, or by fertilizing deposits of earth from the adjacent hills. Cf. Bottom, n., 7. [Local, U. S.] The woody intervale just beyond the marshy land. The Century.
JERUSALEM n.
Jerusalem oak (Bot.), an aromatic goosefoot (Chenopodium Botrys), common about houses and along roadsides. -- Jerusalem sage (Bot.), a perennial herb of the Mint family (Phlomis tuberosa). -- Jerusalem thorn (Bot.), a spiny, leguminous tree (Parkinsonia aculeata), widely dispersed in warm countries, and used for hedg…
KEEL n. 2 definitions
longitudinal timber, or series of timbers scarfed together, extending from stem to stern along the bottom of a vessel. It is the principal timber of the vessel, and, by means of the ribs attached on each side, supports the vessel's frame. In an iron vessel, a combination of plates supplies the place of the keel of a w…
LATERAL a.
of the first degree. [Obs.] -- Lateral line (Anat.), in fishes, a line of sensory organs along either side of the body, often marked by a distinct line of color. -- Lateral pressure or stress (Mech.), a pressure or stress at right angles to the length, as of a beam or bridge; -- distinguished from longitudinal pressu…
LEVEL n.
d low water. -- Line of levels, a connected series of measurements, by means of a level, along a given line, as of a railroad, to ascertain the profile of the ground. -- Plumb level, one in which a horizontal bar is placed in true position by means of a plumb line, to which it is at right angles. -- Spirit level, on…