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Uniparous
- producing only one offspring at a time
Unpartitioned
- not divided by partitions
Unsegmented
- having a body that is not divided into segments; "unsegmented worms"
Univalve
- used of mollusks, especially gastropods, as snails etc.
- a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes
Uphill
- sloping upward
- upward on a hill or incline; "this street lay uphill"
- against difficulties; "she was talking uphill"
- the upward slope of a hill
Upward
- extending or moving toward a higher place; "the up staircase"; "a general upward movement of fish"
- directed up; "the cards were face upward"; "an upward stroke of the pen"
- spatially or metaphorically from a lower to a higher position; "look up!"; "the music surged up"; "the fragments flew upwards"; "prices soared upwards"; "upwardly mobile"
- to a later time; "they moved the meeting date up"; "from childhood upward"
Upmarket
- designed for consumers with high incomes; "he turned up in well-cut clothes...and upmarket felt hats"- New Yorker
Upscale
- appropriate for people with good incomes; "an upscale neighborhood"; "an upscale motel"
Untranslatable
- not capable of being put into another form or style or language; "an untranslatable idiom"; "untranslatable art"