Presents a brief theoretical statement on definition and then discusses a study of the development of definition in children aged 5 to 10. The development of definition is characterized as the gradual articulation of a conventional definitional form out of more general forms of ordinary oral discourse. (NCR)

The nature of the task of defining words by means of other words and the development of language responses (from children aged four to seven) are discussed in terms of a linguistic analysis of the definitional form and its semantic relations. (Author/RM)

Examines how children's beliefs about word meanings may affect their use of contrastive linguistic information in the input of word learning. Two separate studies are discussed that involve how three- and four-year-old children handled new word meanings after exposure to novel terms. (58 references) (GLR)

Results of three investigations of the development of word definitions indicated that younger childrens' definitions, including use or lack of use of superordinate categorical terms, fell short of adult informativeness, while, by age 10, children generally met such criteria in their definitions. (Author/CB)

Examined whether the use of superordinate terms in 206 children's definitions is predictable by relevance theory. Children (ages 5-10) gave definitions for 16 basic-level words and 4 superordinate words from natural kind and artifact semantic domains. Superordinate terms were used more frequently when they supported more inferences. Findings…