What does "grayback" mean?

Alternative spelling of greyback.

Grayback

Common synonyms include: calidris canutus, color morph, crab, dorsal color variant, flea, gray-backed.

noun

noun ·Rare ·Advanced level

Noun

1
Alternative spelling of greyback. alt-of, alternative, countable, uncountable
"It produces grayback and whiteback coated duplex of 250-400 gsm."
2
a sandpiper that breeds in the Arctic and winters in the Southern Hemisphere wordnet
3
a dowitcher with a grey back wordnet

"It produces grayback and whiteback coated duplex of 250-400 gsm."

From gray + back.