Origin: Latin suffix -al
Perennial has 6 different meanings across 2 categories:
(botany) a plant lasting for three seasons or more
"The gardeners carefully mulched around the perennial rose bush to protect its roots as winter approached, knowing it would bloom again next spring."
A perennial plant; a plant that is active throughout the year or survives for more than two growing seasons.
"The hostas in my garden are true perennials because they return every spring after dying back to the ground in winter."
Lasting or remaining active throughout the year, or all the time.
"The perennial stream flows steadily through the valley regardless of the season."