Word origins

• yearthousandmillennium (a thousand-year timespan)
• yokibusA miscellaneous thing or whimsical contraption; a thingamajig.
• Zadracartaan Achaemenid city in Hyrcania
• zelatorA zealot; the male counterpart of a zelatrix.
• zelatrixA nun who oversees the behavior of young nuns.
• zeloticCharacteristic of zealots, especially those that were part of rebellious movements in biblical times.
• zelotypiaJealousy.
• ZenobiusA male given name from Ancient Greek, of historical usage.
• ZenonianPertaining to any of various people named Zeno or Zenon, or to their philosophies.
• zephyretteA type of light, crisp cracker, used primarily for some hors d'oeuvres.
• zetta-In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10²¹ (a short scale sextillion or long scale trilliard).
• ZeuxisA transliteration of the Ancient Greek male given name Ζεῦξις (Zeûxis).
• zincumZinc.
• zizaniaAny of several aquatic North American grasses, of the genus Zizania, grown for their edible grain; wild rice.
• zoanthropyThe belief that one has transformed into an animal.
• zona pellucidaA glycoprotein membrane surrounding the plasma membrane of an oocyte.
• zonulaAny of several small belt-like regions.
• zonuleA little zone, or girdle; a zonula.
• zoofulvinA yellow carotenoid pigment present in the feathers of some birds
• -zoonForming nouns indicating individual members of taxonomic groups whose names end in -zoa.
• zoophorusThe frieze of a column, especially one decorated with animals.
• zygomaxillareA craniometric point at the base of the suture between the zygomatic and maxillary bones.
• zythumAn unfermented kind of Egyptian malt beer.