19-letter words containing f, e, r, i, s
- translation of axes — the process of replacing the axes in a Cartesian coordinate system with a new set of axes, parallel to the first, used to write equations of curves not centered about the origin.
- tricks of the trade — expert techniques
- unclassified degree — a degree that has not been given a grade because it is of a low standard
- unit of measurement — physical quantity
- upper carboniferous — Pennsylvanian (defs 2, 4).
- venus of willendorf — a village in NE Austria, near Krems: site of an Aurignacian settlement where a 4½ inches (11 cm) limestone statuette (Venus of Willendorf) was found.
- white-fronted goose — a grayish-brown wild goose, Anser albifrons, of Eurasia and western North America, having a white patch on the front of the face.
- whorfian hypothesis — Sapir-Whorf hypothesis.
- whorled loosestrife — any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)