a. [SUB- 1 b, 11.] Situated near or below the base of a part or organ. Also sb., a subbasal plate (Funks Standard Dict., 1895).
1848. Proc. Berw. Nat. Club, II. vi. 276. Nostrils sub-basal.
1870. Hooker, Stud. Flora, 172. Cornus sanguinea lateral nerves subbasal.
1902. Proc. Zool. Soc., I. 48. The basal area of these wings irrorated with pearl-grey indicating two vague subbasal bands.