Meanings

gauge boson

fundamental interaction (i.e. gravitation, electromagnetism, weak interaction, strong interaction)

whole wheat flour

baryon

Nosema bombycis (microsporidian parasite responsible for pebrine)

particle beam

lepton

fine-grain development

pebrine (disease of silkworms)

crystal grain

coarse-grained

whole grain

fine grain

sizing

particle size

grain of boiled rice

wheat grain

God particle

lesser hop trefoil (Trifolium dubium)

black medic (Medicago lupulina)