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micro-

micro-
1. (μ) 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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"micro-." A Dictionary of Earth Sciences. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." A Dictionary of Earth Sciences. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro

"micro-." A Dictionary of Earth Sciences. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro

micro-

micro-, before a vowel micr-, comb. form of Gr. mīkrós, var. of smīkrós small, poss. rel to SMALL; used in many scientific terms. microcosm man viewed as an epitome of the universe. XV. — F. microcosme or medL. mīcro(s) cosmus — Gr. mīkròs kósmos little world. micrometer XVII. — F. micromètre. microphone XVII. microscope XVII.

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"micro-." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/micro-3

"micro-." The Concise Oxford Dictionary of English Etymology. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/micro-3

micro-

micro- • comb. form 1. small: microcar. ∎  of reduced or restricted size: microdot microprocessor. 2. (used commonly in units of measurement) denoting a factor of one millionth (10−6): microfarad.

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"micro-." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/micro-2

"micro-." The Oxford Pocket Dictionary of Current English. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/micro-2

micro-

micro-
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).

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"micro-." A Dictionary of Biology. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." A Dictionary of Biology. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-2

"micro-." A Dictionary of Biology. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-2

micro-

micro- A prefix meaning ‘small’, from the Greek mikros, meaning ‘small’. Attached to SI units it means the unit × 10−6 (abbreviated as μ).

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"micro-." A Dictionary of Ecology. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." A Dictionary of Ecology. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-0

"micro-." A Dictionary of Ecology. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-0

micro-

micro- A prefix meaning ‘small’, from the Greek mikros, ‘small’. Attached to SI units it means the unit × 10−6 (abbreviated as μ).

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"micro-." A Dictionary of Zoology. . Encyclopedia.com. 21 Oct. 2017 <http://www.encyclopedia.com>.

"micro-." A Dictionary of Zoology. . Encyclopedia.com. (October 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-1

"micro-." A Dictionary of Zoology. . Retrieved October 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/micro-1