| ABORTIONIST | • abortionist n. (Now sometimes offensive) A person who performs abortions, especially illegally or secretly. • abortionist n. (Chiefly derogatory) A person who advocates for or supports the legality of abortion. • ABORTIONIST n. one who induces abortions. |
| ASTROBOTANY | • astrobotany n. Synonym of xenobotany. • ASTROBOTANY n. the branch of botany that investigates the possibility that plants grow on other planets. |
| BOGTROTTING | • bogtrotting adj. Living among bogs. • BOGTROTTING n. the practice of wandering round bogs, ascribed to Irishmen. |
| BOTHERATION | • botheration interj. A mild expression of annoyance or exasperation: bother! • botheration n. (Uncountable) The state of being bothered; annoyance, vexation. • botheration n. (Countable) An act of bothering or annoying. |
| BRONTOBYTES | • brontobytes n. Plural of brontobyte. • BRONTOBYTE n. a very large unit of computer memory. |
| BUTTONHOLER | • buttonholer n. One who detains somebody in conversation against their will. • buttonholer n. An attachment for a sewing machine which automates the side-to-side and forward-and-backward motions… • BUTTONHOLER n. a person or sewing-machine attachment that makes buttonholes. |
| CONTRIBUTOR | • contributor n. A benefactor; someone who donates to charity or some cause. • contributor n. A person who backs, supports or champions a cause, activity or institution. • contributor n. A person (or thing) instrumental in the creation or growth of something. |
| CRYPTOBIONT | • cryptobiont n. (Biology) Any organism capable of cryptobiosis. • CRYPTOBIONT n. any organism that exhibits cryptobiosis. |
| KATABOTHRON | • KATABOTHRON n. (Modern Greek) an underground water channel, also KATAVOTHRON. |
| OBSTRICTION | • obstriction n. The state of being constrained, bound, or obliged. • obstriction n. That which constrains or obliges; obligation; bond. • OBSTRICTION n. (obsolete) obligation. |
| OBSTRUCTION | • obstruction n. The act of obstructing, or state of being obstructed. • obstruction n. Something which obstructs or impedes, either intentionally or unintentionally. • obstruction n. The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death. |
| OBTURATIONS | • obturations n. Plural of obturation. • OBTURATION n. an obstruction. |
| STROBOTRONS | • strobotrons n. Plural of strobotron. • STROBOTRON n. a gas-filled electron tube used esp. as a source of bright flashes of light for a stroboscope. |
| TROMBONISTS | • trombonists n. Plural of trombonist. • TROMBONIST n. one who plays the trombone. |