| A | B |
|---|
| nucleus | a central or essential part around which other parts are grouped; a core |
| nuclei | plural, a central or essential part around which other parts are grouped; a core |
| bacterium | plural, very small one-celled organisms often considered to be plants, although they usually lack green coloring |
| bacteria | very small one-celled organisms often considered to be plants, although they usually lack green coloring |
| analysis | the process of separating a subject into its parts and studying them so as to determine its nature |
| analyses | plural, the process of separating a subject into its parts and studying them so as to determine its nature |
| diagnosis | the act or process of examining in order to identify or determine the nature of a disease or malfunction |
| diagnoses | plural, the act or process of examining in order to identify or determine the nature of a disease or malfunction |
| criterion | a rule or standard on which a judgment can be based |
| criteria | plural, a rule or standard on which a judgment can be based |
| datum | information, especially when it is to be analyzed or used as the basis for a decision |
| data | plural, information, especially when it is to be analyzed or used as the basis for a decision |
| thesis | something stated or put forth for consideration, especially by a person who plans to maintain it by argument |
| theses | plural, something stated or put forth for consideration, especially by a person who plans to maintain it by argument |
| fungus | any of a group of plants, such as mushroom, mold, yeast, or mildew, that have no green coloring and that obtain their nourishment from living on dead plant or animal substance |
| fungi | plural, any of a group of plants, such as mushroom, mold, yeast, or mildew, that have no green coloring and that obtain their nourishment from living on dead plant or animal substance |
| oasis | a fertile spot or area in a desert, watered by a spring, stream, or well |
| oases | plural, a fertile spot or area in a desert, watered by a spring, stream, or well |
| cactus | one of many kinds of plants that have thick, leafless, often spiny stems and that grow in hot, dry places |
| cacti | plural, one of many kinds of plants that have thick, leafless, often spiny stems and that grow in hot, dry places |
