grex

[greks]
noun
  1. a numerical system for measuring the size of fibers, filaments, or yarns, based on the weight in grams of 10,000 meters of the fibrous material.

Origin of grex

from the expression gram per x (ten)
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British Dictionary definitions for grex

grex

noun
  1. a group of plants that has arisen from the same hybrid parent group

Word Origin for grex

C20: from Latin grex flock
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