• (a.) Situated under the axilla, or armpit. • (a.) Placed under the axil, or angle formed by the branch of a plant with the stem, or a leaf with the branch. Found on http://thinkexist.com/dictionary/meaning/subaxillary/
Sub·ax'il·la·ry adjective 1. (Anat.) Situated under the axilla, or armpit. 2. (Botany) Placed under the axil, or angle formed by the branch of a plant with the stem, or a leaf with the branch. Found on http://www.encyclo.co.uk/webster/S/220