15-letter words containing r, o, t, h, l, d
- thiocarbanilide — a gray powder, C 13 H 12 N 2 S, used as an intermediate in dyes and as an accelerator in vulcanization.
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- threshold price — the highest price a retailer is allowed to sell a particular good at
- to grab hold of — Hold is used in expressions such as grab hold of, catch hold of, and get hold of, to indicate that you close your hand tightly around something, for example to stop something moving or falling.
- trichomonacidal — relating to a trichomonacide
- two-thirds rule — a former rule in the Democratic Party, effective 1832–1936, requiring a vote of at least two thirds of its national convention delegates to nominate a presidential and vice-presidential candidate.
- winter holidays — a period of rest from work or studies taken in winter
- wreathed column — a column having a twisted or spiral form.