The first cousin of a parent would be a first cousin once removed ("1C1R") That 1C1R's child would be a first cousin twice removed ("1C2R"). And so on.
That said, often the technical formalities are disregarded. Personal examples: When I was growing up, we all referred to my grandfather's first cousin as "Aunt Celia," notwithstanding that to me she was a 1C2R. And even today, the ex-wife of a son (albeit by adoption) of my mother's first cousin refers to herself as my mom's "cousin."
Ken Ryesky, Petach Tikva, Israel kenneth.ryesky@...
RAISKY/REISKY, ARONOV, SHKOLNIK(OV), AEROV; Gomel, Belarus
GERTZIG, BRODSKY; Yelizavetgrad, Ukraine
BRODSKY, VASILESKY; Odessa, Ukraine
IZRAELSON, ARSHENOV; Yevpatoriya, Ukraine (Crimea)