(I,II) A small rounded projection on the surface of the valve. In Chaetoceros this is most applicable to resting spores.

a very small or minute elevation.

a small raised surface feature somewhat like a large grain of sand

(pl. granules, adj. granular, granulose) General word for a small, rounded element.

Fragment of cork between 0.25 and 8mm in size, classified by granule size and volumetric mass.

a rounded rock fragment larger than a grain of sand but smaller than a pebble. [AHDOS