Spelling definitions lesson 20

1. analyze: to examine
2. compass: an instrument for determining directions, as by means of a freely rotating magnetized needle that indicates magnetic north.
3. diagram: a figure, usually consisting of a line drawing, made to accompany and illustrate a geometrical theorem, mathematical demonstration, etc.
4. frequency: the state or fact of being frequent; frequent occurrence
5. specific: explained in a more structured way
6. archeology: the scientific study of historic or prehistoric peoples and their cultures by analysis of their artifacts, inscriptions,
7. contour: the outline of a figure or body; the edge or line that defines or bounds a shape or object.
8. epidemic: (of a disease) affecting many persons at the same time, and spreading from person to person in a locality where the disease is not permanently prevalent.
9. liquefy: to make or become liquid
10. stethoscope: a medical device to help a doctor or nurse feel someone's heart beat
11. bacteria: ubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom Monera (in some classification systems the plant class Schizomycetes), various species of which are involved in fermentation, putrefaction, infectious diseases, or nitrogen fixation.
12. crucial: involving an extremely important decision or result; decisive; critical
13. evolution: the evolving or change of something
14. sociology:

the science or study of the origin, development, organization, and functioning of human society; the science of the fundamental laws of social relations, institutions, etc.

15. toxic: of, pertaining to, affected with, or caused by a toxin or poison
16. characteristics: Also, char⋅ac⋅ter⋅is⋅ti⋅cal. pertaining to, constituting, or indicating the character or peculiar quality of a person or thing; typical; distinctive
17. cycle: any complete round or series of occurrences that repeats or is repeated.
18. facsimile: an exact copy, as of a book, painting, or manuscript.
19. spatial: of or pertaining to space.
20. tremor: a shake coming from the ground; like an earthquake