13-letter words containing n, o, r, t, h, y
- orthohydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in the same direction.
- orthopyroxene — a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene
- parasyntheton — a word formed by parasynthesis; for example, kind-hearted
- parthenocarpy — the production of fruit without fertilization of an egg in the ovary.
- phantasmagory — phantasmagoria.
- pharyngectomy — excision of part or all of the pharynx.
- phycoerythrin — a red protein pigment occurring in red algae.
- phytoestrogen — an estrogen-like compound occurring naturally in plants of the legume family and in grains, vegetables, and fruits.
- phytonutrient — phytochemical.
- phytoplankter — a minute organism which constitutes part of phytoplankton
- phytosanitary — of or relating to the health of plants
- plain yoghurt — natural yoghurt, without added flavouring
- pyrotechnical — of or relating to pyrotechnics.
- rhythmization — the act or process of rhythmizing something
- shockumentary — a television programme showing members of the public in shocking or violent situations
- steganography — the practice of concealing messages in such a way that only the sender and the recipient know that there is a message
- stony-hearted — hardhearted.
- string theory — a slender cord or thick thread used for binding or tying; line.
- subinhibitory — not completely inhibiting
- synarthrodial — synarthrosis.
- synchronicity — coincidence in time; contemporaneousness; simultaneousness.
- synchronistic — coincidence in time; contemporaneousness; simultaneousness.
- thanatography — an account or story of a person's death experience
- thankworthily — in a thankworthy way or manner
- the iron lady — a nickname often used to describe female heads of government around the world, meaning 'strong-willed woman'. Most famously used of the Prime Minister of the United Kingdom (1979 to 1990) Margaret Thatcher
- the secondary — cornerbacks and safeties collectively
- thermodynamic — of or relating to thermodynamics.
- thirty-second — next after the thirty-first; being the ordinal number for 32.
- thyroglobulin — a protein which is found in the thyroid gland and which contains iodine
- thyroid gland — a two-lobed endocrine gland, located at the base of the neck that secretes two hormones that regulate the rates of metabolism, growth, and development.
- thysanopteran — Also, thysanopterous. belonging or pertaining to the insect order Thysanoptera, comprising the thrips.
- thysanopteron — thysanopteran.
- trinity house — an association that provides lighthouses, buoys, etc, around the British coast
- twenty-fourth — next after the twenty-third; being the ordinal number for 24.
- untrustworthy — deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
- west by north — a point on the compass 11°15prime; north of west. Abbreviation: WbN.