“micro-”的概念、定义、翻译、参考文献-科学参考

micro-

Physics

Symbol μ‎. A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre=1 micrometre (μm‎).

Chemistry

A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre = 1 micrometre (μm‎).

Chemical Engineering

A prefix used to denote 10⁻⁶ of something; for example, one micrometre is equal to 10⁻⁶ m.

Biology

1. A prefix denoting very small size; e.g. microgamete, micronucleus.
2. Symbol μ‎. A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre = 1 micrometre (μ‎m).

Geology and Earth Sciences

1. From the Greek mikros meaning ‘small’, a prefix meaning ‘extremely small’. Attached to SI units it denotes the unit ×10⁻⁶.
2. In Earth sciences, micro- is a prefix applied in the strict sense to very fine igneous textures. Individual particles are likely to be below the resolution of the naked eye so they can be resolved only with the aid of a petrological microscope (see polarizing microscope). Porphyritic texture which can only be resolved by using such a microscope is termed ‘microporphyritic’ texture and the phenocrysts are ‘microphenocrysts’.
3. The prefix may also be applied to igneous rock names. For example, a syenite with a grain size below that normally accepted for a syenite but above that expected of its fine-grained equivalent, a trachyte, may be termed a microsyenite.

单词	micro-
释义	micro- Physics Symbol μ‎. A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre=1 micrometre (μm‎). Chemistry A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre = 1 micrometre (μm‎). Chemical Engineering A prefix used to denote 10⁻⁶ of something; for example, one micrometre is equal to 10⁻⁶ m. Biology 1. A prefix denoting very small size; e.g. microgamete, micronucleus. 2. Symbol μ‎. A prefix used in the metric system to denote one millionth. For example, 10⁻⁶ metre = 1 micrometre (μ‎m). Geology and Earth Sciences 1. From the Greek mikros meaning ‘small’, a prefix meaning ‘extremely small’. Attached to SI units it denotes the unit ×10⁻⁶. 2. In Earth sciences, micro- is a prefix applied in the strict sense to very fine igneous textures. Individual particles are likely to be below the resolution of the naked eye so they can be resolved only with the aid of a petrological microscope (see polarizing microscope). Porphyritic texture which can only be resolved by using such a microscope is termed ‘microporphyritic’ texture and the phenocrysts are ‘microphenocrysts’. 3. The prefix may also be applied to igneous rock names. For example, a syenite with a grain size below that normally accepted for a syenite but above that expected of its fine-grained equivalent, a trachyte, may be termed a microsyenite.
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