12-letter words containing r, e, a, n, x
- sandbox tree — a tropical American tree, Hura crepitans, of the spurge family, bearing a furrowed, roundish fruit about the size of an orange that when ripe and dry bursts with a sharp report and scatters the seeds.
- serotaxonomy — the study of the taxonomy of proteins using serological methods
- sexagenarian — of the age of 60 years or between 60 and 70 years old.
- sexcentenary — pertaining to 600 or a period of 600 years; marking the completion of 600 years.
- tax increase — an increase in the amount of tax that people and companies are obliged to pay
- texas ranger — a member of the Texas state police force or, especially formerly, of the mounted state police.
- trans-sexual — a person having a strong desire to assume the physical characteristics and gender role of the opposite sex.
- transfer box — A transfer box is a gear system that divides the power between the front and rear axles of a four-wheel drive system.
- transfer tax — a transaction fee imposed on the transfer of title to property
- unexplorable — to traverse or range over (a region, area, etc.) for the purpose of discovery: to explore the island.
- unexpurgated — to amend by removing words, passages, etc., deemed offensive or objectionable: Most children read an expurgated version of Grimms' fairy tales.
- uranic oxide — uranium dioxide.
- xanthopterin — a yellow pigment, C6H5N5O2, found in some butterfly or moth wings or in the urine of mammals
- xenoreactive — (immunology) That generates a reaction to material from another species.