vi·roid 
(vīroid′)
(vīroid′)n.
An infectious particle, similar to but smaller than a virus, that consists solely of a strand of RNA and is capable of causing disease in plants.
- fine structure
- fine-tooth comb
- fine-toothed comb
- fine-tune
- finfish
- finger
- fingerboard
- finger bowl
- fingerbreadth
- fingered
- fingerer
- finger hole
- fingering
- Finger Lakes
- fingerless
- fingerling
- finger millet
- fingernail
- finger-paint
- finger painting
- fingerpick
- fingerpicker
- finger-pointing
- finger post
- fingerprint