15-letter words containing a, f, r, m, e
- tree-form frame — a rigid frame having a pair of inclined girders branching from each column, as to form principals of a roof.
- trout fisherman — a fisherman who catches trout
- ultramicrofiche — ultrafiche.
- unfamiliarities — not familiar; not acquainted with or conversant about: to be unfamiliar with a subject.
- uninformatively — in an uninformative manner
- valerian family — the plant family Valerianaceae, characterized by herbaceous plants and shrubs having simple or compound, opposite leaves, clusters of small flowers, and dry, indehiscent fruit, and including corn salad, spikenard (Nardostachys jatamansi), and valerian.
- vestimentiferan — any of various marine tubeworms of the phylum Vestimentifera or Pogonophora, which live in upright tubes near hydrothermal vents.
- waterfall model — (programming) A software life-cycle or product life-cycle model, described by W. W. Royce in 1970, in which development is supposed to proceed linearly through the phases of requirements analysis, design, implementation, testing (validation), integration and maintenance. The Waterfall Model is considered old-fashioned or simplistic by proponents of object-oriented design which often uses the spiral model instead. Earlier phases are sometimes called "upstream" and later ones "downstream". Compare: iterative model.
- welfare statism — the belief in or practices of a welfare state.
- well-formulated — to express in precise form; state definitely or systematically: He finds it extremely difficult to formulate his new theory.