16-letter words containing e, a, c, h, n, d
- sounding machine — any of various machines for taking and recording soundings.
- special handling — (in the U.S. Postal Service) the handling of third- and fourth-class mail as first-class upon the payment of a fee.
- stannic chloride — a colorless fuming and caustic liquid, SnCl 4 , soluble in water and alcohol, that converts with water to a crystalline solid: used for electrically conductive and electroluminescent coatings and in ceramics.
- stannic sulphide — an insoluble solid compound of tin usually existing as golden crystals or as a yellowish-brown powder: used as a pigment. Formula: SnS2
- steric hindrance — the prevention or retardation of inter- or intramolecular interactions as a result of the spatial structure of a molecule.
- student teaching — the act of teaching in a school for a limited period under supervision as part of a course to qualify as a teacher
- tension headache — a headache caused by muscle tension resulting from stress or overwork
- the human comedy — French La Comédie Humaine. a collected edition of tales and novels in 17 volumes (1842–48) by Honoré de Balzac.
- the long paddock — a stockroute or roadside area offering feed to sheep and cattle in dry times
- thioarsenic acid — any of three hypothetical acids, H3AsS4, HAsS3, and H4As2S7, known only in the forms of their salts
- three-card monte — a gambling game in which the players are shown three cards and bet that they can identify one particular card of the three, as stipulated by the dealer, after the cards have been moved around face down by the dealer.
- underpitch vault — a construction having a central vault intersected by vaults of lower pitch.
- uniformed branch — the branch of a police force in which officers wear a uniform
- vitamin-enriched — having had vitamins added
- ward christensen — (person) The inventor of XMODEM and of the BBS. Ward did physics in college and programmed mainframes for IBM. Ward and friend Randy Suess set up their BBS on first on 1978-02-16 in Chicago. It ran on an S-100 computer with 64k RAM and two single-sided 8" 250kB diskettes.
- western sandwich — a sandwich with a western omelet for a filling.
- wheelchair-bound — unable to walk through injury, illness, etc and relying on a wheelchair to move around
- with clean hands — innocently