noun a sudden, apparently abnormal change or alteration in a genetically determined structure, as opposed to gradual evolutionary change.The disease is the result of a mutation in a particular gene.A mutation has…
Word of the Day
Daily definitions and usage information for all who want to increase and hone their vocabulary.
WOTD: egotist
noun a conceited person; braggart.That egotist bragged about himself all evening. See the full entry
WOTD: hitherto
adverb until this time; previously.The child hitherto residing with his grandparents will be placed in the custody of his father. See the full entry
Weekly Quiz
With the Wordsmyth Vocabulary Center activities, you can study these words, play games with them, and assess your knowledge of their meanings with a quiz. Click here to go to the Vocabulary…
WOTD: grassroots
adjective originating with or operating among the common people.His grassroots political campaign was highly successful.A grassroots effort was launched to prevent the building of the power plant. See the full entry