Tertilenoun
(statistics) Either of the two points that divide an ordered distribution into three parts, each containing a third of the population.
Tertialnoun
(ornithology) Any flight feather attached to the humerus (upper arm) of a bird.
Tertilenoun
(statistics) Any one of the three groups so divided.
βThe first tertile results include January through April's revenues.β;
Tertialadjective
Same as Tertiary.