18-letter words containing m, e, y, r, h, o
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- stockholm syndrome — an emotional attachment to a captor formed by a hostage as a result of continuous stress, dependence, and a need to cooperate for survival.
- stoichiometrically — of or relating to stoichiometry.
- stokely carmichael — Hoagland Howard [hohg-luh nd] /ˈhoʊg lənd/ (Show IPA), ("Hoagy") 1899–1981, U.S. songwriter and musician.
- symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
- synthetic geometry — elementary geometry, as distinct from analytic geometry.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- the movie industry — the industry that makes entertainment films or movies
- the same old story — the familiar or regular course of events
- three-body problem — the problem of calculating the motions of three bodies in space moving under the influence of only their mutual gravitational attraction.
- 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.
- two-chamber system — the system of having two parliamentary chambers, as the House of Lords and the House of Commons in the United Kingdom
- zermelo set theory — (mathematics) A set theory with the following set of axioms: Extensionality: two sets are equal if and only if they have the same elements. Union: If U is a set, so is the union of all its elements. Pair-set: If a and b are sets, so is {a, b}. Foundation: Every set contains a set disjoint from itself. Comprehension (or Restriction): If P is a formula with one free variable and X a set then {x: x is in X and P(x)}. is a set. Infinity: There exists an infinite set. Power-set: If X is a set, so is its power set. Zermelo set theory avoids Russell's paradox by excluding sets of elements with arbitrary properties - the Comprehension axiom only allows a property to be used to select elements of an existing set.