| BACKSPIN | • backspin n. Spin applied to a ball in order to slow it, change its flight, or stop it when it lands. • backspin n. (Music) Synonym of spinback. • backspin v. (Transitive) To spin (a ball) with this motion. |
| CECROPIN | • cecropin n. (Biochemistry) Any of a group of antimicrobial peptides that lyse bacterial cell membranes. • CECROPIN n. a peptide with antibacterial properties, originally obtained from the cecropia moth. |
| CRANKPIN | • crankpin n. The pin that attaches a connecting rod to a crank. • crank␣pin n. Alternative form of crankpin. • CRANKPIN n. the handle of a crank. |
| DOWNSPIN | • DOWNSPIN n. a spinning motion. |
| DRIFTPIN | • driftpin n. (Engineering) A smooth drift. • DRIFTPIN n. a metal pin for securing timbers. |
| LINCHPIN | • linchpin n. A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device. • linchpin n. (Figuratively) A central cohesive source of stability and security; a person or thing that is critical… • linchpin v. (Transitive, intransitive) To adopt as, or serve as, a central cohesive source of stability and security. |
| LYNCHPIN | • lynchpin n. Alternative form of linchpin. • lynchpin v. Alternative form of linchpin. • LYNCHPIN n. a locking pin inserted in the end of a shaft, also LINCHPIN. |
| OVERSPIN | • overspin n. An excessive amount of spin applied to a projectile such that its nose does not turn down at the summit… • overspin n. A rotational motion, especially that given to a ball, in which the upper surface spins in the direction… • overspin v. To spin too much or too far. |
| RIFAMPIN | • rifampin n. (Pharmacology) US form of rifampicin. • RIFAMPIN n. an antibiotic. |
| SCARFPIN | • scarfpin n. A pin used to hold a scarf or tie in place. • SCARFPIN n. a pin for fastening a scarf. |
| SIDESPIN | • sidespin n. Rotation around a vertical axis that makes a ball or other object curve in flight. • SIDESPIN n. a type of spin imparted to a ball. |
| STICKPIN | • stickpin n. (US) An ornamented pin used to secure a necktie’s end flat against the shirt, a tie tack. • STICKPIN n. a decorative tiepin. |
| TAILSPIN | • tailspin n. (Aviation) The rapid, uncontrollable descent of an aircraft in a steep spiral. • tailspin n. (Figuratively) A severe mental or emotional collapse; emotional breakdown. • tailspin n. (Figuratively) Any sharp, sustained, often uncontrollable descent or decline. |
| TERRAPIN | • terrapin n. (Countable) Any of several small turtles of the families Emydidae and Geoemydidae found throughout the world. • terrapin n. (Countable, obsolete) Any turtle. • terrapin n. (Countable, obsolete) Any of several small turtles native to North America that live in brackish or… |
| THOLEPIN | • tholepin n. A thole. • THOLEPIN n. a pin that serves as an oarlock. |
| UNDERPIN | • underpin v. (Transitive) To support from below with props or masonry. • underpin v. (Transitive, figuratively) To give support to; to corroborate. • UNDERPIN v. to support from below. |