13-letter words containing um
- umbelliferous — bearing an umbel or umbels.
- umbraculiform — umbrella-shaped
- umbrella bird — any of several large trogons of the genus Cephalopterus, of Central and South America, as C. ornatus, having an umbrellalike crest above the head.
- umbrella leaf — a rare, large-leaved perennial herb, Diphylleia cymosa, of the southeastern U.S., having white flowers and small, blue berries.
- umbrella palm — an Australian feather palm, Hedyscepe canterburyana, characterized by the umbrellalike manner of growth of its leaves.
- umbrella pine — a Japanese evergreen tree, Sciadopitys verticillata, having linear leaves growing in umbrellalike whorls, cultivated as an ornamental.
- umbrella step — (in the game of giant steps) a step executed by extending one foot forward and whirling on the heel.
- umbrella tent — a small tent with a metal frame consisting of ribs that radiate from a single supporting pole.
- umbrella tree — an American magnolia, Magnolia tripetala, having large leaves in umbrellalike clusters.
- uncircumcised — not circumcised.
- uncircumspect — watchful and discreet; cautious; prudent: circumspect behavior.
- unconsummated — to bring to a state of perfection; fulfill.
- unilluminated — not lit up or bright with light
- uranium oxide — any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 .
- vacuum bottle — a bottle or flask having a vacuum liner that prevents the escape of heat from hot contents, usually liquids, or the entrance of heat into cold contents; thermos.
- vacuum drying — the removal of liquid from a solution or mixture at reduced air pressure so that it dries at a lower temperature than would be required at full pressure.
- vacuum filter — A vacuum filter is a filter in which the liquid passes through more easily because of a vacuum on the liquid output side.
- vacuum-packed — packed and sealed in a container, as a can or jar, with as much air as possible evacuated before sealing, chiefly to preserve freshness.
- virtual human — a computer-generated moving image of a human being, used esp in films as an extra in large crowd scenes
- vivisectorium — the location where vivisection takes place
- volumenometer — a device for determining the volume occupied by an object
- w3 consortium — World Wide Web Consortium
- water opossum — yapok.
- west columbia — a town in central South Carolina.
- whole numbers — Also called counting number. one of the positive integers or zero; any of the numbers (0, 1, 2, 3, …).
- wild geranium — geranium (def 2).
- yttrium metal — any of a subgroup of rare-earth elements, of which the cerium and terbium metals comprise the other two subgroups.
- yttrium oxide — a white, water-insoluble powder, Y 2 O 3 , used chiefly in incandescent gas and acetylene mantles.
- zero-sum game — a game in which the sum of the winnings and losses of the various players is always zero, the losses being counted negatively.
- zoosporangium — a sporangium or spore case in which zoospores are produced.