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S: (last access: 14 April 2016)

N: 1. – wave (n): “moving billow of water,” 1520s, alteration (by influence of wave (v.)) of Middle English waw, which is from Old English wagian “to move to and fro” (cognates: Old Saxon, Old High German wag, Old Frisian weg, Old Norse vagr “water in motion, wave, billow,” Gothic wegs “tempest;” see wag (v.)). The usual Old English word for “moving billow of water” was yð.
– turbine (n): 1838, from French turbine (19c.), from Latin turbinem (nominative turbo) “spinning top, eddy, whirlwind, that which whirls,” related to turba “turmoil, crowd” (see turbid). Originally applied to a wheel spinning on a vertical axis driven by falling water. Turbo in reference to gas turbine engines is attested from 1904.
2. The SDK Wave Turbine by Sendekia is a device for capturing wave power to produce electricity. It consists of an underwater turbine that generates electricity by harnessing the energy of waves, and that uses the waves’ bidirectional oscillating movement to maintain the same rotational direction regardless of the direction of flow. This system features greater efficiency and electricity yield compared to other technology, and has potential for large-scale application.

S: 1. OED – http://www.etymonline.com/index.php?allowed_in_frame=0&search=wave; http://www.etymonline.com/index.php?allowed_in_frame=0&search=turbine (last access: 14 April 2016). 2. http://www.oceanexchange.org/success-story/sdk-wave-turbine-success-story-february-2014/ (last access: 14 April 2016).

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CR: ocean wave energy, tidal energy, tidal turbine, underwater turbine.