The Collaborative International Dictionary of English v.0.48:
Lymphoid \Lymph"oid\, a. [Lymph + -oid.] (Anat.) Resembling lymph; also, resembling a lymphatic gland; adenoid; as, lymphoid tissue. [1913 Webster]WordNet (r) 3.0 (2006):
lymphoid adj 1: resembling lymph or lymphatic tissues