| BIOTOXIN | • biotoxin n. Any toxin produced by a living organism. • BIOTOXIN n. a poison of biological origin. |
| BOXTHORN | • boxthorn n. Any plant of the genus Lycium. • BOXTHORN n. a thorny shrub with red berries. |
| EXOTOXIN | • exotoxin n. Any toxin secreted by a microorganism into the surrounding environment. • EXOTOXIN n. a secreted toxin. |
| NEOTOXIN | • NEOTOXIN n. any harmful substance in the environment causing illness or allergy. |
| NEXTDOOR | • nextdoor adj. (Nonstandard) Alternative spelling of next-door. • nextdoor adv. (Nonstandard) Alternative spelling of next-door. • next-door adj. That occupies an adjacent place, especially the building immediately to the left or right. |
| NONTOXIC | • nontoxic adj. Not toxic; not poisonous. • nontoxic n. A substance that is not toxic. • non-toxic adj. Alternative form of nontoxic. |
| OXTONGUE | • oxtongue n. Beef tongue (a foodstuff). • oxtongue n. A flowering plant of the genus Picris, especially Picris echioides (bristly oxtongue). • oxtongue n. A flowering plant of the genus Anchusa, especially Anchusa officinalis (true alkanet). |
| OXYTOCIN | • oxytocin n. (Biochemistry) A hormone that stimulates contractions during labor, and then the production of milk;… • OXYTOCIN n. a pituitary hormone that stimulates uterine muscle contraction. |
| OXYTONES | • oxytones n. Plural of oxytone. • OXYTONE n. (Greek) a word bearing an acute accent on the last syllable. |
| OXYTONIC | • oxytonic adj. (Prosody) Having a stress on the last syllable. • OXYTONIC adj. like an oxytone. |
| TAXONOMY | • taxonomy n. The science or the technique used to make a classification. • taxonomy n. A classification; especially, a classification in a hierarchical system. • taxonomy n. (Taxonomy, uncountable) The science of finding, describing, classifying and naming organisms. |
| ZOOTOXIN | • zootoxin n. A toxin produced by an animal. • ZOOTOXIN n. a toxin produced by an animal. |