Murchison Surname Meaning. Descriptive Writing introductory reference. An Englishing of Gaelic MacMhurchaidh, 'son of Murchadh,' Englished Murdoch. Fowill Morthoison was burgess of Inverness, 1452 (Invernessiana, p. 122).
enrichment. 1  an act of enriching. 2  the state of being enriched. 3  something that enriches: the enrichments of education and travel.
Definition of composition for English Language Learners. : 1  the way in which something is put together or arranged : the combination of parts or elements that make up something. : 2  a piece of writing; especially : a brief essay written as a school assignment. : 3  a written piece of music and especially one that is very long or complex.