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Microphyte

A very minute plant, one of certain unicellular algae, such as the germs of various infectious diseases are believed to be.

Micropyle

An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted. An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule.

Microscopal

Pertaining to microscopy, or to the use of the microscope.

Microscope

An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked eye.

Microscopically

By the microscope; with minute inspection; in a microscopic manner.

Microscopy

The use of the microscope; investigation with the microscope.

Microseism

A feeble earth tremor not directly perceptible, but detected only by means of specially constructed apparatus.

Microseismograph

A microseismometer; specif., a microseismometer producing a graphic record.

Microseismometer

A seismometer for measuring amplitudes or periods, or both, of microseisms.

Microseme

Having the orbital index relatively small; having the orbits broad transversely; -- opposed to megaseme.

microsome

a tiny granule in the cytoplasm of a cell; it consists of ribosomes bound to fragments of the endoplasmic reticulum and mitochondria.

Microsorium

A genus of tropical usually epiphytic ferns, found from Africa to Asia, and from Polynesia to Australia.

Microspectroscope

A spectroscope arranged for attachment to a microscope, for observation of the spectrum of light from minute portions of any substance.

Microsporangium

A sporangium or conceptacle containing only very minute spores. Cf. Macrosporangium.

Microspore

One of the exceedingly minute spores found in certain flowerless plants, as Selaginella and Isoetes, which bear two kinds of spores, one very much smaller than the other. Cf. Macrospore.

Microsthene

One of a group of mammals having a small size as a typical characteristic. It includes the lower orders, as the Insectivora, Cheiroptera, Rodentia, and Edentata.

Microsthenic

Having a typically small size; of or pertaining to the microsthenes.

Microtasimeter

A tasimeter, especially when arranged for measuring very small extensions. See Tasimeter.

Microtome

An instrument for making very thin sections for microscopical examination.

Microtomist

One who is skilled in or practices microtomy.

Microtomy

The art of using the microtome; investigation carried on with the microtome.

Microvolt

A measure of electro-motive force; the millionth part of one volt.

Microzo0spore

A small motile spore furnished with two vibratile cilia, found in certain green algae.

Microzyme

A microorganism which is supposed to act like a ferment in causing or propagating certain infectious or contagious diseases; a pathogenic bacterial organism.

Micrurus

A genus of snakes including certain of the coral snakes, such as the eastern coral snake (Micrurus fulvius).

micturate

to pass urine through the ureter; to urinate.

Micturition

The act of voiding urine; urination; also, a morbidly frequent passing of the urine, in consequence of disease.

mid-off

the fielding position in cricket closest to the bowler on the off side.

mid-on

the fielding position in cricket closest to the bowler on the on side.

Mida

The larva of the bean fly.

midair

some point in the air; above ground level; as, the planes collided in midair; also used attributively; as, a midair collision.

Midas

A genus of longeared South American monkeys, including numerous species of marmosets. See Marmoset.

Midbrain

The middle segment of the brain; the mesencephalon. See Brain.

Midday

Of or pertaining to noon; meridional; as, the midday sun.

Middle

The point or part equally distant from the extremities or exterior limits, as of a line, a surface, or a solid; an intervening point or part in space, time, or order of series; the midst; central portion the waist.

Middle-aged

Being about the middle of the ordinary age of man; early in the century, it was considered between 30 and 50 years old, but by the end of the 19th centruy it was considered as 40 to 60.

Middle-earth

The world, considered as lying between heaven and hell.

Middle-ground

That part of a picture between the foreground and the background.

middle-level

intermediate in rank or position; as, middle-level management.

middle-of-the-road

supporting or pursuing a course of action that is neither liberal nor conservative.

Middlemost

Being in the middle, or nearest the middle; midmost.

Middler

One of a middle or intermediate class in some schools and seminaries.

Middling

Of middle rank, state, size, or quality; about equally distant from the extremes; medium; moderate; mediocre; ordinary.

Middlings

A combination of the coarser parts of ground wheat the finest bran, separated from the fine flour and coarse bran in bolting; -- formerly regarded as valuable only for feed; but now, after separation of the bran, used for making the best quality of flour. Middlings contain a large proportion of gluten.

Middy

A colloquial abbreviation of midshipman.

Midfeather

A vertical water space in a fire box or combustion chamber.

midfield

the middle part of a playing field (as in football or lacrosse); as, he ran the kickoff back to midfield.

Midget

A minute bloodsucking fly.

Midgut

The middle part of the alimentary canal from the stomach, or entrance of the bile duct, to, or including, the large intestine.

Midheaven

The midst or middle of heaven or the sky.

midiron

a long iron{5} with a nearly vertical face.

Midland

The interior or central region of a country; -- usually in the plural.

Midmain

The middle part of the main or sea.

Midnight

Being in, or characteristic of, the middle of the night; as, midnight studies; midnight gloom.

Midrash

A talmudic exposition of the Hebrew law, or of some part of it.

Midrib

A continuation of the petiole, extending from the base to the apex of the lamina of a leaf.

Midship

Of or pertaining to, or being in, the middle of a ship.

Midships

The timbers at the broadest part of the vessel.

midstream

the middle of a stream; as, don't change horses in midstream.

midsummer-men

A Eurasian mountain plant (Sedum rosea) with fleshy pink-tipped leaves and a cluster of yellow flowers.

midterm

the middle of the gestation period.

Midway

In the middle of the way or distance; half way.

Midweek

The middle of the week. Also used adjectively.

midweekly

occurring during the middle of the week; as, a midweekly prayer meeting.

Midwest

The north central region of the U. S.

midwestern

Of or pertaining to the Midwest region of the U. S., generally including Ohio; Indiana; Illinois; Iowa; Missouri; Kansas; Nebraska; and sometimes Michigan; Wisconsin; Minnesota; as, a midwestern city; midwestern accent.

Midwife

To perform the office of midwife.

Midwifery

The art or practice of assisting women in childbirth; obstetrics.

Mien

Aspect; air; manner; demeanor; carriage; bearing.

mierkat

A South African mongooselike viverrine (Suricata suricata) having a lemurlike face and only four toes; called also suricate.

Miff

To offend slightly.

Might

Force or power of any kind, whether of body or mind; energy or intensity of purpose, feeling, or action; means or resources to effect an object; strength; force; power; ability; capacity.

Mightily

In a mighty manner; with might; with great earnestness; vigorously; powerfully.

Mightiness

The quality of being mighty; possession of might; power; greatness; high dignity.

Mighty

In a great degree; very.

Mignonette

A plant (Reseda odorata) having greenish flowers with orange-colored stamens, and exhaling a delicious fragrance. In Africa it is a low shrub, but further north it is usually an annual herb.

migraine

A kind of intense sick or nervous headache, usually periodical and confined to one side of the head; called also migraine headache. Same as megrim.

Migrant

A migratory bird, person, or other animal.

Mikado

The popular designation of the hereditary sovereign of Japan; the emperor of Japan.

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