blackrider

English

Etymology 1

From black +‎ rider.

Noun

blackrider (plural blackriders)

1. A small variety of the Arctic char (Salvelinus alpinus)
   • 2007, D. Zick, H. Gassner, M. Rinnerthaler, P. Jäger, R.A. Patzner, “Application of population size structure indices to Arctic charr Salvelinus alpinus (L.) in Alpine lakes in Austria”, in Ecology of Freshwater Fish:

     All of these high mountain lakes are now inhabited by two morphs of Arctic charr: fish of small body size (so called: 'blackriders') are highly numerous in these lakes and large body size fish (so called: 'wildcaught charrs') which are significantly less numerous.

   • 2012, Liisa Nevalainen, Tomi P. Luoto, “Faunal (Chironomidae, Cladocera) responses to post-Little Ice Age climate warming in the high Austrian Alps”, in Journal of Paleolimnology, volume 48:

     The lake is inhabited by two morphs of Arctic charr (Salvelinus alpinus); small-bodied “blackriders” are very numerous, whereas larger “wild-caught charrs” are less frequent

Etymology 2

From blackride +‎ -er.

Noun

blackrider (plural blackriders)

1. A student who rides in a blackride.
   • 2019, Alan Taylor, Thomas Jefferson's Education, page 97:

     To rile their professors, South Carolina students staged 'blackrides,' when they blackened their faces, stole the horses of faculty, and galloped about campus while holding flaming torches. After exhausting a horse and drawing a cheering crowd, a 'blackrider' dismounted and slipped into the midst of his fellows to hide from investigation."