| ANATOXINS | • anatoxins n. Plural of anatoxin. • ANATOXIN n. a potent alkaloid toxin derived from a species of cyanobacteria. |
| ANTITOXIN | • antitoxin n. (Medicine) A medicine able to neutralize a toxin. • antitoxin n. (Medicine) An antibody capable of neutralizing specific toxins. • ANTITOXIN n. an antidote to a toxin. |
| ENDOTOXIN | • endotoxin n. Any toxin secreted by a microorganism and released into the surrounding environment only when it dies. • ENDOTOXIN n. a toxin of internal origin, specifically a poisonous substance present in bacteria. |
| EXPONENTS | • exponents n. Plural of exponent. • EXPONENT n. one who practises a discipline. |
| EXTENSION | • extension n. The act of extending; a stretching out; enlargement in length, breadth, or time; an increase. • extension n. The state of being extended. • extension n. That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension"). |
| NEOTOXINS | • NEOTOXIN n. any harmful substance in the environment causing illness or allergy. |
| NONEXEMPT | • nonexempt adj. Not exempt. • nonexempt adj. (Law) Subject to taxation; not within any category of income to which taxes are not applied. • nonexempt n. One who is not exempt. |
| NONEXOTIC | • nonexotic adj. Not exotic. • NONEXOTIC adj. not exotic. |
| NONEXPERT | • nonexpert adj. Not expert. • nonexpert n. A person who is not an expert (in the field that is relevant to the context#Noun). • non-expert n. Alternative spelling of nonexpert. |
| NONEXTANT | • nonextant adj. Not extant. • NONEXTANT adj. not extant. |
| NONSEXIST | • nonsexist adj. Not sexist. • nonsexist n. One who is not a sexist. • NONSEXIST adj. not sexist. |
| NONTOXICS | • nontoxics n. Plural of nontoxic. • NONTOXIC n. a substance that is not toxic. |
| XANTHONES | • xanthones n. Plural of xanthone. • XANTHONE n. a ketone analogue of xanthene which forms the basis of various natural pigments. |