METAMORPHOSIS n.
marked changes of external form, as the chrysalis stage, pupa stage, etc., in insects. In these intermediate stages sexual reproduction is usually impossible, but they ultimately pass into final and sexually developed forms, from the union of which organisms are produced which pass through the same cycle of changes. Se…
METRIC a.
the meter (see Meter). From this are formed the are, the liter, the stere, the gram, etc. These units, and others derived from them, are divided decimally, and larger units are formed from multiples by 10, 100, 1,000, and 10,000. The successive multiplies are designated by the prefixes, deca-, hecto-, kilo-, and myria-…
MISCHIEF n.
Cause of trouble or vexation; trouble. Milton. The mischief was, these allies would never allow that the common enemy was subdued. Swift. To be in mischief, to be doing harm or causing annoyance. -- To make mischief, to do mischief, especially by exciting quarrels. -- To play the mischief, to cause great harm; to thr…
MOLLUSCA n.
asses Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generall…
MOSQUITO n.
needlelike organs with which they puncture the skin of man and animals to suck the blood. These bites, when numerous, cause, in many persons, considerable irritation and swelling, with some pain. The larvæ and pupæ, called wigglers, are aquatic. [Written also musquito.] Mosquito bar, Mosquito net, a net or curtain for…