| ARDOUR | • ardour n. Britain, Canada, and Australia spelling of ardor. • ARDOUR n. passion of feeling, also ARDOR. |
| ARDOURS | • ardours n. Plural of ardour. • ARDOUR n. passion of feeling, also ARDOR. |
| BIOHAZARDOUS | • biohazardous adj. Constituting a biohazard. • BIOHAZARDOUS adj. of or like a biohazard. |
| HAZARDOUS | • hazardous adj. Risky; dangerous; with the nature of a hazard. • hazardous adj. Of or involving chance. • HAZARDOUS adj. dangerous. |
| HAZARDOUSLY | • hazardously adv. In a hazardous manner. • HAZARDOUS adv. dangerous. |
| HAZARDOUSNESS | • hazardousness n. The condition of being hazardous. • HAZARDOUS n. dangerous. |
| HAZARDOUSNESSES | • HAZARDOUSNESS n. HAZARDOUS, dangerous. |
| JEOPARDOUS | • jeopardous adj. Marked by jeopardy; dangerous or perilous. • JEOPARDOUS adj. (obsolete) perilous; hazardous. |
| JEOPARDOUSLY | • jeopardously adv. In a jeopardous manner. • JEOPARDOUS adv. (obsolete) perilous; hazardous. |
| LIGNIPERDOUS | • ligniperdous adj. (Zoology) Wood-destroying; said of certain insects and fungi. • LIGNIPERDOUS adj. destroying wood. |
| NONHAZARDOUS | • nonhazardous adj. Not hazardous; safe. • non-hazardous adj. Alternative form of nonhazardous. • NONHAZARDOUS adj. not hazardous. |
| SOURDOUGH | • sourdough n. A type of bread dough leavened with yeast and lactobacilli that produce acids giving a sour taste. • sourdough n. (Countable, slang) An old-timer, especially in Alaska. • sourdough n. (Countable, Yukon) A permanent resident of the territory. Someone who has lived in the Yukon during all four seasons. |
| SOURDOUGHS | • sourdoughs n. Plural of sourdough. • sour-doughs n. Plural of sour-dough. • sour␣doughs n. Plural of sour dough. |
| ULTRAHAZARDOUS | • ultrahazardous adj. Extremely hazardous. • ULTRAHAZARDOUS adj. extremely hazardous. |
| UNHAZARDOUS | • unhazardous adj. Not hazardous. • UNHAZARDOUS adj. not hazardous. |