1. (noun) (nontechnical usage) a tiny piece of anything

• atom
• corpuscle
• molecule
• mote
• speck

2. (noun) a body having finite mass and internal structure but negligible dimensions

• subatomic particle

1. (noun) (nontechnical usage) a tiny piece of anything

• chylomicron
• flyspeck
• grain
• grinding
• identification particle

2. (noun) a body having finite mass and internal structure but negligible dimensions

• alpha particle
• beta particle
• boson
• deuteron
• elementary particle
• fundamental particle
• fermion
• ion
• magnetic monopole
• micelle
• prion
• scintilla
• superstring
• thermion
• virino
• virion

1. (noun) (nontechnical usage) a tiny piece of anything

• material
• stuff

2. (noun) a body having finite mass and internal structure but negligible dimensions

• body

3. (noun) a function word that can be used in English to form phrasal verbs

• closed-class word
• function word

1. (noun) (nontechnical usage) a tiny piece of anything

• atomic
• atomise
• atomize
• molecular