18-letter words containing m, a, y, h
- sympathetic strike — sympathy strike.
- sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
- symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
- systematic phoneme — a phonological unit in generative phonology representing an underlying form that takes into account the relationship between phonological patterns and morphological variation, as the unit underlying the second vowel in both derive and derivative.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- the family compact — the ruling oligarchy in Upper Canada in the early 19th century
- the same old story — the familiar or regular course of events
- the welsh assembly — the elected assembly for Wales, based in Cardiff, that has certain powers devolved from the UK government
- thermal efficiency — the ratio of the work output of a heat engine to the heat input expressed in the same units of energy.
- to meet your match — If you meet your match, you find that you are competing or fighting against someone who you cannot beat because they are as good as you, or better than you.
- to take the mickey — If you take the mickey out of someone or something, you make fun of them, usually in an unkind way.
- triarylmethane dye — any of the class of dyes containing three aryl groups attached to a central carbon atom: used chiefly for dyeing cotton, wool, and silk.
- two-chamber system — the system of having two parliamentary chambers, as the House of Lords and the House of Commons in the United Kingdom
- vitamin a aldehyde — retinal2 .
- wesleyan methodist — a member of any of the churches founded on the evangelical principles of John Wesley.
- witch hazel family — the plant family Hamamelidaceae, characterized by trees and shrubs having alternate, simple leaves, flowers in clusters or heads, and fruit in the form of a double-beaked woody capsule, and including the sweet gum, witch alder, and witch hazel.
- withdrawal symptom — effects of stopping a drug