-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.
Definition of Climax. When used as a literary term, a climax in a story occurs when there is a turning point from which there is no going back. The climax is the point of highest tension in a narrative. In a tragedy, the climax will generally reveal the protagonistâs greatest weaknesses, and the situation will go irreparably wrong.