trembled; trembling
ˈtrem-b(ə-)liŋ
1
: to shake involuntarily (as with fear or cold) : shiver
2
: to move, sound, pass, or come to pass as if shaken or tremulous
the building trembled from the blast
3
: to be affected with great fear or anxiety
trembled for the safety of her child
1
: an act or instance of trembling
especially
: a fit or spell of involuntary shaking or quivering
2
trembles plural in form but singular in construction
: severe poisoning of livestock and especially cattle by a toxic alcohol present in a snakeroot (Ageratina altissima) and rayless goldenrod that is characterized especially by muscular tremors, weakness, and constipation
trem·bler
ˈtremb(ə)lə(r)
plural -s
2
: any of various West Indian birds of the genera Cinclocerthia and Rhamphocinclus of the family Mimidae
3
: the vibrating hammer or spring contact piece of an electrical hammer break (as of the electric ignition apparatus for an internal-combustion engine)
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Merriam-Webster unabridged



