ˌekwəsəˈtāsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from Equisetum, type genus + -aceae
: the sole surviving family of the order Equisetales appearing first in the Carboniferous and represented in the recent flora by the single genus Equisetum
• eq·ui·se·ta·ceous | ̷ ̷ ̷ ̷ ̷ ̷|tāshəs adjective