1. (noun) coil such that current is induced in it by passing a current through the primary coil

• secondary coil
• secondary winding

2. (adjective) inferior in rank or status

• junior-grade
• lower-ranking
• lowly
• petty
• subaltern

1. (adjective) being of second rank or importance or value; not direct or immediate

• alternate
• alternative
• substitute
• auxiliary
• subsidiary
• supplemental
• supplementary
• collateral
• indirect
• second-string
• secondhand
• standby
• substitute
• utility
• thirdhand
• tributary
• vicarious

2. (adjective) inferior in rank or status

• junior

3. (adjective) depending on or incidental to what is original or primary

• incident
• incidental

4. (adjective) not of major importance

• minor

5. (adjective) belonging to a lower class or rank

• low-level
• subordinate

1. (noun) the defensive football players who line up behind the linemen

• back

1. (noun) the defensive football players who line up behind the linemen

• formation

2. (noun) coil such that current is induced in it by passing a current through the primary coil

• coil

1. (noun) the defensive football players who line up behind the linemen

• eleven
• football team

1. (adjective) being of second rank or importance or value; not direct or immediate

• inessential
• unessential
• unoriginal

1. (adjective) inferior in rank or status

• pettiness
• puniness
• slightness
• triviality
• subaltern

1. (adjective) being of second rank or importance or value; not direct or immediate

• primary