(of a surname) Having three separate parts (surnames) linked by hyphens.

(medicine) Serum levels of alpha-fetoprotein, estriol and beta-human chorionic gonadotropin, used during pregnancy to screen for chromosomal abnormalities and neural tube defects.

plural of triple-decker

plural of triple crown

plural of triple-tail

plural of triple harp

(music) A type of multi-course harp employing three parallel rows of strings instead of the more common single row, a common version being the Welsh triple harp used in Welsh folk music.

(Buddhism) The three main elements of Buddhism, i.e., Buddha, his teachings, and his clergy

(rail transport) In railway air braking systems, a valve that performs three functions.

plural of triple valve