Is PICAS a Wordle Word?

Yes. PICAS is a valid Wordle word.

It is not on the Wordle answer list, so it is unlikely to be a daily answer.

Plurals ending in S are almost never chosen as Wordle answers.

What does PICAS mean?

A disorder characterized by craving and appetite for non-edible substances, such as ice, clay, chalk, dirt, or sand.

A size of type between small pica and English, standardized as 12-point.
(usually with qualifier) A font of this size.
A unit of length equivalent to 12 points, officially 35/83 cm (0.166 in) after 1886 but now 1/6 in.

1 more noun definition

A pie or directory: the book directing Roman Catholic observance of saints' days and other feasts under various calendars.

Any of several small, furry mammals, similar to guinea pigs, but related to rabbits, of the family Ochotonidae, from the mountains of North America and Asia.

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: AverageIn the top 35% of all valid Wordle words for testing common letters.
Vowels: I, A
Unique letters: 5 of 5
Common letters: I, A

Hard-mode trap: 6 valid words fit the pattern PI_AS. If you reach it, you may need several guesses to find the last letter.

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.