-blast. A suffix meaning an immature precursor cell of the type indicated by the preceding word. [G. blastos, germ]. immature precursor cell type; the cell type is denoted by the preceding syllables, e.g. osteoblast.
(plural defining moments) A moment in time that defines something, such as a person's success or failure, achievement or demise, talent, etc. A point at which the essential nature or character of a person, group, etc., is revealed or identified.
a : a feeling of happiness that you get when you or someone you know does something good, difficult, etc. [noncount] The sight of her son holding the trophy filled her with pride. [=made her very proud] She spoke with pride [=she spoke proudly] about her son's achievements. She looked at her painting with pride.