Is alcid a word in the Scrabble Dictionary

Yes, alcid is playable

...and is worth 10 points.

Found in the following dictionaries

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SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Alcid" Definition

noun

A bird of the family Alcidae, including auks and puffins.
Source: Wiktionary
Any of a family (Alcidae, the alcid family) of web-footed diving birds with short legs and wings that includes the auks, murres, and puffins.