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fluctuant

fluctuant

1 9.1
Soft and able to change shape when pressed or likely to change often
  • adjective
  • /ˈflʌk.tʃu.ənt/
  • Specialized
: fluctuante
  • The doctor noted that the lump was fluctuant, indicating it was filled with fluid.

Examples

  • If prompt clinical improvement does not occur or if the swelling becomes fluctuant, incision and drainage should be performed.

    Academic text (2010)
  • The nasal mass was 2 cm in diameter, painless, fluctuant, and not tender (figure 1).

    Academic text (2001)
  • However, the mass did not resolve, and it subsequently became fluctuant.

    Academic text (2004)
  • Typically, a fluctuant swelling is felt deep to the sternocleidomastoid at the junction of its upper third and lower two thirds.

    Academic text (2007)
  • Most tuberculous cervical infections are painless, rubbery nodes, but up to 10% of patients will present with a fluctuant mass, and 5% will have draining sinuses.

    Academic text (1995)
  • During the examination, she discovered a fluctuant swelling that prompted further tests.

  • He described the fluctuant mass under his skin as soft and easily compressed.

Synonyms

squishy
vsfluctuant
  • Informal
28 3.0

Soft and easy to squeeze, often a little wet and spongy

is an unstable fluid-filled swelling that shifts shape under pressure
soft and squishy
vsfluctuant
1 2.8

Easy to press and feels like a sponge

is specifically a soft swelling containing fluid that shifts shape
squidgy
vsfluctuant
  • UK
1 7.4

Soft and a little wet so you can squeeze it easily

is a movable fluid-filled lump that changes when pressed
squeezable
vsfluctuant
1 2.8

Easy to press by hand to change shape or let out what is inside

is used for soft fluid-filled masses that change shape when pressed
soft and ploppy
vsfluctuant
7.0

Feels squishy and a little wet when pressed

is a fluid-filled bump that deforms and moves under touch

Antonyms

467 2.3

Not likely to change and stays steady over time

37 4.0

Does not bend because it is stiff

How Fluctuant

fluctuant
  • Specialized
1 9.1
squishy
  • Informal
28 3.0
soft
557 1.0
firm
87 1.0

Surface Forms

fluctuant positive

Morphology

fluctuant = fluctuate (semi-transparent) = fluctuate + ant

The adjective is formed via a standard adjectival suffix from 'fluctuate' (to move or change), but the clinical sense 'soft, compressible due to fluid' is a specialized extension not obvious to all learners.

Etymology

Fluctuant comes from the Latin root fluctu- meaning 'flow' or 'wave', the same idea you find in the common word fluid. So something fluctuant is like a soft thing that can 'flow' or move and change shape when pressed, which is why doctors use it for a fluid-filled swelling and why we also say markets or feelings can be fluctuant when they change up and down over time.