particulat
Particulat is not a widely recognized term in standard English or major technical vocabularies. When encountered, it is usually a misspelling or truncation of other words such as particulate or particular, rather than a distinct, canonical term with an agreed meaning.
Possible interpretations hinge on the intended word. If the author meant particulate, the term would relate
In practice, readers should verify the spelling and consult surrounding text to determine the intended sense.