| QUINQUENNIA | • quinquennia n. Plural of quinquennium. • QUINQUENNIUM n. a period of five years, also QUINQUENNIAD. |
| QUINQUEREME | • quinquereme n. (History) An ancient Carthaginian or Greek galley having three banks of oars, rowed by five oarsmen… • QUINQUEREME n. an ancient ship with five banks of oars. |
| QUINQUENNIAD | • quinquenniad n. (Now rare) Synonym of quinquennium: A 5-year period. • QUINQUENNIAD n. a period of five years, also QUINQUENNIUM. |
| QUINQUENNIAL | • quinquennial adj. Of or related to a five-year period. • quinquennial n. A five-year period. • quinquennial n. A 5th anniversary. |
| QUINQUENNIUM | • quinquennium n. A period of five years. • QUINQUENNIUM n. a period of five years, also QUINQUENNIAD. |
| QUINQUEREMES | • quinqueremes n. Plural of quinquereme. • QUINQUEREME n. an ancient ship with five banks of oars. |
| QUINQUENNIADS | • quinquenniads n. Plural of quinquenniad. • QUINQUENNIAD n. a period of five years, also QUINQUENNIUM. |
| QUINQUENNIALS | • quinquennials n. Plural of quinquennial. • QUINQUENNIAL n. an anniversary recurring every five years. |
| QUINQUENNIUMS | • quinquenniums n. Plural of quinquennium. • QUINQUENNIUM n. a period of five years, also QUINQUENNIAD. |
| QUINQUEVALENT | • quinquevalent adj. Alternative spelling of quinquivalent. • QUINQUEVALENT adj. having a valency of five, also QUINQUIVALENT. |
| QUINQUECOSTATE | • quinquecostate adj. (Botany) Having five ribs. • QUINQUECOSTATE adj. five-ribbed. |
| QUINQUEFARIOUS | • quinquefarious adj. (Botany, rare) Arranged in five vertical rows. • QUINQUEFARIOUS adj. arranged in five rows. |
| QUINQUEFOLIATE | • quinquefoliate adj. (Botany) Having five leaves or leaflets. • QUINQUEFOLIATE adj. having five leaves. |
| QUINQUENNIALLY | • quinquennially adv. Every five years. • QUINQUENNIAL adv. lasting five years; occurring every fifth year. |
| QUINQUEPARTITE | • quinquepartite adj. Consisting of five parts. • QUINQUEPARTITE adj. divided into or composed of five parts. |
| QUINQUEVALENCE | • quinquevalence n. The condition of being quinquevalent. • QUINQUEVALENCE n. pentavalency, also QUINQUEVALENCY, QUINQUIVALENCE, QUINQUIVALENCY. |
| QUINQUEVALENCY | • quinquevalency n. Alternative form of quinquivalence. • QUINQUEVALENCY n. pentavalency, also QUINQUEVALENCE, QUINQUIVALENCE, QUINQUIVALENCY. |
| QUINQUEVALENCES | • QUINQUEVALENCE n. pentavalency, also QUINQUEVALENCY, QUINQUIVALENCE, QUINQUIVALENCY. |