[muh-tak-ruh-nuh s] /məˈtæk rə nəs/
Medicine/Medical. occurring at a different time than a similar event:
Geology. composed of parts formed at different times:
The older late-glacial shorelines are metachronous.
/ˌmɛtəˈkrəʊsɪs/ noun 1. (zoology) the ability of some animals, such as chameleons, to change their colour
[met-uh-sin-uh-bahr] /ˌmɛt əˈsɪn əˌbɑr/ noun, Mineralogy. 1. a polymorph of , black mercuric sulfide, HgS.
/ˌmɛtəsɪˈnæbəˌraɪt/ noun 1. the black solid form of mercuric sulphide
The class of a class. A metaclass is a class whose instances are themselves classes.