| ANATOXINS | • anatoxins n. Plural of anatoxin. • ANATOXIN n. a potent alkaloid toxin derived from a species of cyanobacteria. |
| EXACTIONS | • exactions n. Plural of exaction. • EXACTION n. the act of exacting. |
| FIXATIONS | • fixations n. Plural of fixation. • FIXATION n. the act of fixating. |
| LAXATIONS | • laxations n. Plural of laxation. • LAXATION n. the act of loosening or slackening. |
| LUXATIONS | • luxations n. Plural of luxation. • LUXATION n. the dislocation of an anatomical part. |
| SAXITOXIN | • saxitoxin n. A neurotoxin, produced by some dinoflagellates, associated with red tides, that can accumulate in mollusks… • SAXITOXIN n. a nerve poison found in molluscs feeding on dinoflagellates of the genus Gonyaulax. |
| SAXONITES | • saxonites n. Plural of saxonite. • SAXONITE n. an ultrabasic igneous rock consisting of olivine and enstatite. |
| SUBTAXONS | • subtaxons n. Plural of subtaxon. • SUBTAXON n. a subdivision of a taxon. |
| TAXATIONS | • taxations n. Plural of taxation. • TAXATION n. the process of taxing. |
| TETRAXONS | • tetraxons n. Plural of tetraxon. • TETRAXON n. a sponge spicule, also TETRACT. |
| TOXICANTS | • toxicants n. Plural of toxicant. • TOXICANT n. a poisonous substance. |
| VEXATIONS | • vexations n. Plural of vexation. • VEXATION n. a cause of trouble. |
| XANTHOMAS | • xanthomas n. Plural of xanthoma. • XANTHOMA n. a skin disease marked by the development of irregular yellowish patches upon the skin, esp. upon the eyelids. |
| XANTHONES | • xanthones n. Plural of xanthone. • XANTHONE n. a ketone analogue of xanthene which forms the basis of various natural pigments. |
| XENOBLAST | • xenoblast n. A crystal forming in a metamorphic rock that has not developed its characteristic crystalline faces… • XENOBLAST n. a type of mineral deposit. |