| Term | Definition |
| ethnologist | a specialist in cultural anthropology |
| concentric | having a common center |
| ethnic | related to common racial or cultural traits |
| concentration | the focusing of attention on idea or task |
| ethnicity | a classification or affiliation by race or time |
| ethnocentric | inclined to regard one's own social group as superior to all others |
| reflection | the sending back of an image, as in a mirror |
| circumflex | bending around; curved |
| deflection | a change of course or direction |
| reflex | bent, turned, or directed back |
| inflexible | unbending; rigid |
| inflection | a change in tone or pitch |
| defunct | no longer used or active |
| perfunctory | done as a duty; having a superficial quality |
| function | the purpose something serves |
| dysfunction | abnormal, impaired, or incomplete functioning |
| functionary | one who performs in a certain position, esp. an official |