1. Fungi in which the spores and gametes are motile; in some systems placed in the Phycomycetes group with the Zygomycota
   - subdivision Mastigomycota, Mastigomycotina, subdivision Mastigomycotina

Type of: division

Part of: division Eumycota, Eumycota

• letter bond
• letter box
• letter carrier
• letter case
• letter of credit
• letter of intent
• Letter of Jeremiah
• letter of mark and reprisal
• letter of marque
• letter of the alphabet
• letter opener
• letter paper
• letter security
• letter stock
• letter telegram
• letter writer
• letter-perfect
• lettercard
• lettered
• letterer
• letterhead
• lettering
• letterman
• letterpress
• letters