1) Slot 
• (n.) See Key way, under Key.
a slot or groove in which a key engages
A slot formed and poured on a footer or in a foundation wall when another wall will be installed at the slot location. This gives additional strength to the joint/meeting point. 
The female portion of a precision attachment. ... (05 Mar 2000) ... 
A groove or slot cut to fit a key. A key fits into a key seat and slides into a keyway.
a slot in the edge of the barge hull of a jackup drilling unit over which the drilling rig is mounted and through which drilling tools are lowered and removed from the well being drilled. 
Key'way` noun See Key way , under Key . 
- A slot formed and poured on a footer or in a foundation wall when another wall will be installed at the slot location. This gives additional strength to the joint/meeting point.
Type: Term Pronunciation: kē′wā Definitions: 1. In dentistry, the female portion of a precision attachment.
Mechanical locking device located on the slitter head spindle shaft that holds the knives and spacers in place.
A recess or groove in one lift or placement of concrete which is filled with concrete of the next lift, giving shear strength to the joint. See also Tongue and Groove.
A slot formed and poured on a footer or in a foundation wall when another wall will be installed at
A slot formed and poured on a footer or in a foundation wall when another wall will be installed at the slot location. This gives additional strength to the joint/meeting point.
a groove in a shaft, the hub of a wheel, etc., for receiving part of a key holding it to another part. · a slot in a lock for receiving and guiding the key. · (in poured-concrete construction) a longitudinal groove in a footing, or in a pour that has set, providing a key for newly poured concrete. · a depression or slot carved int...