A railfan, rail buff or train buff (American English), railway enthusiast or railway buff (Australian / British English), or trainspotter or anorak (British English), is a person interested in a recreational capacity in rail transport. Railfans of many ages can be found worldwide.
In the World Reference Base for Soil Resources and similar soil classification systems, a sapric is a subtype of a histosol where virtually all of the organic material has undergone sufficient decomposition to prevent the identification of plant parts.[1][2] Muck is a sapric soil that is naturally waterlogged or is artificially drained.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  mull(noun) a term used in Scottish names of promontories. 2  Mull(verb) an island in western Scotland in the Inner Hebrides. 3  chew over, think over, meditate, ponder, excogitate, contemplate, muse, reflect, mull, mull over, ruminate, speculate(verb) reflect deeply on a subject.