17-letter words containing a, i, r, p, s, g
- spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
- spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- steamboat springs — a town in NW Colorado: ski resort.
- stereolithography — a process for creating three-dimensional objects using a computer-controlled laser to build up the required structure, layer by layer, from a liquid photopolymer that solidifies.
- superregeneration — regeneration in which a signal is alternately amplified and quenched at a frequency slightly above the audible range to achieve high sensitivity with a single tube.
- tiglath-pileser i — died 1102? b.c, king of Assyria c1115–1102?.
- wage-price spiral — a situation in which wage and price increases drive each other upward and cause inflation
- weeping lovegrass — any grass of the genus Eragrostis, as E. curvula (weeping lovegrass) and E. trichodes (sand lovegrass) cultivated as forage and ground cover.
- zygomatic process — any of several bony processes that articulate with the cheekbone.