Tecophilaeacea te·cop·hi·laeacea uncommon noun 1. one of many subfamilies into which some classification systems subdivide the Liliaceae but not widely accepted Synonymsfamily Tecophilaeacea Related words Broader terms liliid monocot family Parts Liliaceae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.