M
Animals: A flat-surfaced rear tooth in mammals used to grind food.
Chemistry: A solution containing one mole or gram molecule per litre. (abbr. M) |
m.c.
the percentage of water in a substance -note the moisture content of wood is normally calculated as a percentage of oven-dry weight for solid wood products and as a percentage of total or green weight for paper or wood fuel products
_____
Source: Dictionary of Forestry (1998) published by the Society of American Foresters, 5400 Grosvenor Lane, Bethesda, MD 20814-2198. Not for further rep... |
M.M.D.
Pesticides: Figure dividing total volume of spray into two equal parts: one half of the mass of spray is contained in droplets of smaller diameter than the MMD, and the other half is contained in droplets of larger diameter. |
m.p.
Abbreviation for melting point. |
M<(sub)3+4>
See also: Calypter
The last long vein in the wing of acalypterate Diptera. |
M3 and M4
The last long vein in an acalypterate wing. |
Macerate
To soften by soaking; to cause disintegration of tissues, etc., by separation of cells, e.g. by microbiological action, solutions of pectolytic enzymes, chelating solutions such as ethylenediaminetetraacetic acid (EDTA), etc. The term is frequently used incorrectly instead of comminute (q.v.) (BSPP) |
Machine-hour rate
A method of charging overheads to cost centres obtained by dividing the budgeted overheads by the budgeted number of hours. |
Macleaya extract
Plant-derived fungicide
NOMENCLATURE: Approved name: Macleaya extract. CAS RN: [112025-60-2].
SOURCE: The pink plume poppy (Macleaya cordata R. Br.) is widely distributed.
PRODUCTION: The product is extracted from Macleaya cordata.
TARGET :PESTS: Foliar fungal diseases, such as powdery mildew, alternaria... |
Macrocentrus ancylivorus
Parasitoid of oriental fruit moth
NOMENCLATURE: Approved name: Macrocentrus ancylivorus Rohwer.
SOURCE: Macrocentrus ancylivorus is a parasitoid native to north-eastern portions of the USA. This braconid wasp was described in 1921 as a parasitoid of strawberry leafroller, but will attack many other caterpillars, such as fruitworms, stem borers and... |