Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
glŏmĕrāmen, ĭnis, n. [glomero], a rounding; concr., a round body, ball (poet. and perh. ante- and post-class.): dissimiles formae glomeramen in unum conveniunt, Lucr. 2, 686: lunae, id. 5, 726.
In plur.: nec retinentur enim inter se glomeramina quaeque, i. e. the round atoms, Lucr. 2, 454: dilue praeterea glomeramina, i. e. pills, Ser. Samm. 55, 999.