17-letter words containing o, t, l, i, h
- whistler's mother — (formal name, Arrangement in Gray and Black No. 1: Portrait of the Artist's Mother) a painting (1871) by James McNeill Whistler.
- white blood cells — any of various nearly colorless cells of the immune system that circulate mainly in the blood and lymph and participate in reactions to invading microorganisms or foreign particles, comprising the B cells, T cells, macrophages, monocytes, and granulocytes.
- white-nationalism — white supremacy.
- willow flycatcher — a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher)
- wind chill factor — A wind chill factor is a measure of the cooling effect of the wind on the temperature of the air.
- wind-chill factor — the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
- winter heliotrope — a creeping perennial, Petasites fragrans, related to the butterbur, having lilac to heliotrope-coloured flowers smelling of vanilla: found chiefly on road verges
- withdrawal method — a method of contraception in which the man withdraws his penis from the woman's vagina before ejaculation
- world without end — for ever
- worth one's while — a period or interval of time: to wait a long while; He arrived a short while ago.
- yield the palm to — to acknowledge the superiority of; admit to defeat by
- zola technologies — (company) Producers of the Z simulation language.