microgroove |
an especially fine groove on a long-playing record, or a record having such a groove. |
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] |