Definition of sub-basal in US English:

sub-basal

adjective

Zoology
  • Situated near or below the base of a part or organ.

noun

Zoology
  • An element near the base of a part; especially a plate near the base of a crinoid. Now rare.

Origin

Early 19th century. From sub- + basal.

Pronunciation

sub-basal

/sʌbˈbeɪsl/