noun

• (veterinary medicine) A loop of cord used in obstetric cases, to hold or to pull a fetus from the mother animal.
• (surgery) A similar looped instrument formerly used to remove tumours etc.
• (music) A set of stiff wires held under tension against the bottom head of a drum to create a rattling sound.
• (music) A snare drum.

verb

• (transitive) To catch or hold, especially with a loop.
  "The mournful crocodile / With sorrow snares relenting passengers."
• (transitive, figurative) To ensnare.
• (transitive, intransitive, uncommon) To play (a snare drum, or a beat on or as if on a snare drum).
  "[…] the slightest recollection of hearing the wind whistling through the cracks in the old house or the rain snaring its tat-a-tat on the rusty tin roof."

noun

• (biochemistry) Any of a class of proteins whose primary role is to mediate vesicle fusion.