baby’s tears also ba·by-tears (b??b?-tîrz?)pl.n. (used with a sing. or pl. verb) An evergreen, mat-forming perennial (Soleirolia soleirolii) native to the western Mediterranean region, grown as an ornamental for its numerous tiny, roundish leaves.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.