| micrometer1 |
an instrument for measuring minute distances, angles, diameters, and the like in telescopic and microscopic images. [2 definitions] |
| micrometer2 |
see "micron." |
| micrometer caliper |
a precision caliper with a spindle that is moved by a micrometer screw, used for measuring minute distances with extreme accuracy. |
| micrometer screw |
a very finely threaded screw that is used in micrometers to give extremely fine measurements, esp. of thickness. |
| micrometry |
measuring with micrometers. |
| micron |
a unit of length equal to one millionth of a meter. |
| Micronesia |
one of the three principal Pacific island groups, north of the equator, between the Philippines and the international date line. (Cf. Melanesia, Polynesia.) [2 definitions] |
| Micronesian |
of or pertaining to Micronesia or its people, cultures, languages, or the like. [3 definitions] |
| micronucleus |
the smaller of two kinds of nuclei that are found in certain protozoans and that are associated with genetics and reproduction. |
| micronutrient |
an element that, in extremely small amounts, is necessary for the health of an organism. |
| microorganism |
any microscopic life form such as a bacterium, protozoan, or virus. |
| microphone |
a device that converts sound waves into electronic signals for recording, amplification, or broadcast. |
| microphotograph |
a very small photograph that must be enlarged to be seen in detail. [3 definitions] |
| microplastic |
(usu. pl.) a tiny piece or particle of plastic. |
| microprint |
the printed or positive reproduction of a microphotograph to be viewed or read by means of a magnifying device, such as a projector. |
| microprocessor |
the integrated circuit of a microcomputer, usu. contained on a single silicon chip. |
| micropublishing |
the publication of items, such as documents or newspapers, that have been photographically reduced. |
| microscope |
an instrument using a lens or lenses to magnify extremely small objects, esp. those not visible to the unaided eye. |
| microscopic |
too small to be seen with the unaided eye. [3 definitions] |
| microscopy |
the development of tools and techniques for microscopic investigation. [2 definitions] |
| microsecond |
one millionth of a second. |