| 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. |
| AZOTOBACTER | • Azotobacter prop.n. A taxonomic genus within the family Pseudomonadaceae – nitrogen-binding bacteria. • AZOTOBACTER n. a nitrogen-fixing bacteria. |
| BATTLEDOORS | • battledoors n. Plural of battledoor. • BATTLEDOOR n. (obsolete) a light bat for striking a shuttlecock, also BATTLEDORE. |
| 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. |
| FOOTBREADTH | • footbreadth n. The breadth of a foot; used as a measure. • FOOTBREADTH n. the width of a foot. |
| FOOTLAMBERT | • footlambert n. Alternative form of foot-lambert. • foot-lambert n. A unit of luminance equal to 1/π candela per square foot, or 3.426 candela per square meter. • FOOTLAMBERT n. a unit of luminance of a surface emitting one lumen per square foot. |
| KATABOTHRON | • KATABOTHRON n. (Modern Greek) an underground water channel, also KATAVOTHRON. |
| MOTORBOATED | • motorboated v. Simple past tense and past participle of motorboat. • MOTORBOAT v. to travel by motorboat. |
| MOTORBOATER | • motorboater n. Someone who pilots a motorboat. • MOTORBOATER n. one who drives a motorboat. |
| OBLITERATOR | • obliterator n. One who obliterates. • OBLITERATOR n. one who obliterates. |
| OBTURATIONS | • obturations n. Plural of obturation. • OBTURATION n. an obstruction. |
| ORTHOBORATE | • orthoborate n. (Inorganic chemistry) Any anion derived from orthoboric acid; any salt containing this anion. • ORTHOBORATE n. a salt of orthoboric acid. |
| POSTORBITAL | • postorbital adj. Behind the orbit of the eye. • postorbital n. A postorbital bone or scale. • POSTORBITAL adj. situated behind the eye. |
| ROUSTABOUTS | • roustabouts n. Plural of roustabout. • ROUSTABOUT n. a casual or unskilled laborer, esp. on an oil rig, also ROUSEABOUT. |
| TROPHOBLAST | • trophoblast n. (Cytology) The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing… • TROPHOBLAST n. the outermost layer of cells in the morula that attaches the fertilized ovum to the uterine wall and acts as a nutritive pathway. |