(cycling) The tendency of a chain to stick to chainrings and be sucked up into the bicycle instead of coming off the chainring, especially if it is worn or if conditions are dirty.

(cycling) The slapping sound of the bicycle's chain against the chainstays while riding over rough terrain.

(Australia) Chain used to fetter horses or cattle.

A Japanese weapon evolved from the sickle; the kusarigama.

Woodwardia, native to the Northern Hemisphere. / Tmesipteris, native to the South Pacific

A series of conditions that can lead to a person being drowned: lack of education (about water safety or local conditions), lack of safety advice, lack of protection (such as a flotation device), lack of supervision, and inability to cope (e.g. a weak swimmer in strong currents).

Lightning in angular, zigzag, or forked flashes.

A boat fitted up for recovering lost cables, anchors, etc.

(calculus) A formula for computing the derivative of the functional composition of two or more functions.

(nautical) An opening in the deck, lined with iron, through which the cable is passed into the lockers or tiers.