| ARRHENOTOKIES | • ARRHENOTOKY n. giving birth only to boys. |
| BACKSCRATCHER | • backscratcher n. A long slender rod with a rake-like device on one end, sometimes in the form of a human hand, designed… • back␣scratcher n. Alternative spelling of backscratcher. • BACKSCRATCHER n. a person who practises backscratching. |
| BREAKTHROUGHS | • breakthroughs n. Plural of breakthrough. • BREAKTHROUGH n. an offensive thrust that penetrates and carries beyond a defensive line in warfare. |
| CHECKERBOARDS | • checkerboards n. Plural of checkerboard. • CHECKERBOARD n. a board used in various games (as checkers) with usually 64 squares in 2 alternating colors. |
| HEADSHRINKERS | • headshrinkers n. Plural of headshrinker. • head-shrinkers n. Plural of head-shrinker. • HEADSHRINKER n. (colloquial) a psychiatrist. |
| HEARTBREAKERS | • heartbreakers n. Plural of heartbreaker. • heart␣breakers n. Plural of heart breaker. • HEARTBREAKER n. one that causes heartbreak. |
| HETEROKARYONS | • heterokaryons n. Plural of heterokaryon. • HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei. |
| HOUSEBREAKERS | • housebreakers n. Plural of housebreaker. • house-breakers n. Plural of house-breaker. • house␣breakers n. Plural of house breaker. |
| HYDROCRACKERS | • hydrocrackers n. Plural of hydrocracker. • HYDROCRACKER n. one engaged in hydrocracking. |
| KATHAROMETERS | • katharometers n. Plural of katharometer. • KATHAROMETER n. an instrument measuring changes in composition of gases. |
| KERAUNOGRAPHS | • keraunographs n. Plural of keraunograph. • KERAUNOGRAPH n. an instrument for detecting distant thunderstorms, also CERAUNOGRAPH. |
| KIRSCHWASSERS | • kirschwassers n. Plural of kirschwasser. • KIRSCHWASSER n. (German) an alcoholic spirit distilled, chiefly in Germany and Switzerland, from the fermented juice of cherries, also KIRSCH. |
| SCRIMSHANKERS | • scrimshankers n. Plural of scrimshanker. • SCRIMSHANKER n. a shirker, also SKRIMSHANKER. |
| SHELLCRACKERS | • shellcrackers n. Plural of shellcracker. • SHELLCRACKER n. a kind of sunfish, aka redear. |
| SKRIMSHANKERS | • skrimshankers n. Plural of skrimshanker. • SKRIMSHANKER n. one who evades work or duty, also SCRIMSHANKER. |