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Glossary: M is for ... metabolize monoecious mesophyte.
by Ariadne Unst
Glossary of M...
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- macronutrients (n.)
- The nutritional elements, nitrogen, phosphorus, potassium, calcium,
magnesium, and sulfur, essential for normal plant growth, development, and
reproduction. They are usually derived from the soil.
- macrophyllous (adj.)
- Having large leaves.
- maculate (adj.)
- Spotted or blotched.
- mean annual increment (M.A.I. or m.a.i.) (n.)
- The total increment of trees in a stand up to a given age, divided by that
age, often expressed in annual cubic meters of growth per hectare (cubic feet
of growth per acre).
- manipulative (adj.)
- Manipulative experiments involve two or more experimental variables.
They must be designed carefully to avoid ambiguous results.
Contrast with a mensurative
- mean (n.)
- In statistics, calculated by adding together all of the data values and dividing this
sum by the total number of data values.
- megagametophyte (n.)
- The female gametophyte which develops from the megaspore and produces the
- meiosis (n.)
- Reduction division resulting in the production of haploid gametes; a
process consisting of two specialized nuclear divisions ultimately leading to
the formation of eggs or sperm.
- mensurative (adj.)
- Mensurative experiments make measurements at
one or more points in space or time. The only thing that varies
in such an experiment is space or time.
Contrast with a manipulative
- Characterized by intermediate moisture conditions, neither decidedly wet
nor decidedly dry. The mid-range of the moisture scale from wet to dry.
Moist throughout the growing season (compare xeric).
- mesocarp (n.)
- The middle layer of a pericarp; this is the fleshy part
of some fruits.
- mesophyte (n.)
- A plant whose normal habitat is neither very wet nor very dry.
- Mesozoic (n.)
- An era of geologic history marked by the cycads, evergreen trees,
dinosaurs, marine and flying reptiles, and ganoid fishes.
- (in Geology) The changes in the composition and textures of rock,
caused by pressure, heat, and moisture. It results in a more compact and more
highly crystalline condition.
- metabolize (v.)
- Change by the chemical processes that constantly take place in living
- micronutrients (n.)
- Nutritional trace elements, such as boron and manganese, that are
necessary in minute quantities for normal plant growth.
- mitochondria (n.)
- Organelles (inside a cell) that oxidize organic energy for use in cellular
- mitosis (n.)
- Normal division of a nucleus into two identical child nuclei by
duplication and separation of chromosomes.
- mode (n.)
- In statistics, the most frequently occurring value in a data set.
- monocotyledon (n.) (monocotyledonous, adj.)
- A plant having a single cotyledon or seed leaf in the embryo.
Flowering parts are often in multiples of three;
leaves are often long and strap-like with parallel veins;
roots are likely to be bulbs, corms, or rhizomes.
Includes grasses, lilies, irises, orchids, and palms.
A subclass of
- Having staminate and pistillate flowers in separate places on the same
- montane (n.)
- The biogeographic zone of relatively moist cool upland slopes below
timberline It is characterized by large evergreen trees as a dominant life
- mountain climate (n.)
- Trees do not grow at high altitudes.
- Also see climate.
- muck (n.)
- Highly decomposed organic material formed under conditions of
waterlogging. It contains few recognizable remains of the original plants.
- mutation (n.)
- An inherited and spontaneous change in the genetic structure
of an organism.
- mycelium (n.)
- The mass of threadlike filaments constituting the vegetative body of a
- mycorrhizal (adj.)
- Having a symbiotic relationship between a fungus and the root of a plant.
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