16-letter words containing y, u, a, n
- unpredictability — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- unproportionally — having due proportion; corresponding.
- unsystematically — having, showing, or involving a system, method, or plan: a systematic course of reading; systematic efforts.
- urinary calculus — a calcareous concretion in the urinary tract.
- variable annuity — an annuity in which the premiums are invested chiefly in common stocks or other securities, the annuitant receiving payments based on the yield of the investments instead of in fixed amounts.
- ventriculography — radiography of the ventricles of the heart after injection of a contrast medium
- vocabulary entry — (in dictionaries) a word, phrase, abbreviation, symbol, affix, name, etc., listed with its definition or explanation in alphabetical order or listed for identification after the word from which it is derived or to which it is related.
- voluntary helper — a person who aids or assists in a specified function of one's own accord and without compulsion or promise of remuneration
- voluntary muscle — muscle whose action is normally controlled by an individual's will; mainly skeletal muscle, composed of parallel bundles of striated, multinucleate fibers.
- voluntary school — a school that promotes specific religious beliefs and which is funded by a local education authority but was not established by the authority
- voluntary sector — the part of the economy that consists of non-profit-making organizations, as opposed to the public and private sectors
- voluntary worker — a person who serves or acts in a specified function of their own accord and without compulsion or promise of remuneration
- what do you know — People sometimes say 'What do you know!' when they are very surprised about something.
- yellowfin (tuna) — a tuna (Thunnus albacares) with yellow fins and a yellow stripe on each side, important as a game and food fish and found worldwide in warm seas
- zygosporangium's — a sporangium that bears a zygospore.