© A Dictionary of Biology 2004, originally published by Oxford University Press 2004. cymose inflorescence (cyme; definite inflorescence) A type of flowering shoot (see inflorescence) in which the first-formed flower develops from the growing region at the top of the flower stalk (see illustration).n a dichasial cyme (or dichasium), the development of the flower at the apex is followed by two new flower axes developing from buds opposite one another, as in plants of the family Caryophyllaceae (such as stitchwort).