TURRET n. 4 definitions
re pierced for light and ventilation. Turret clock, a large clock adapted for an elevated position, as in the tower of a church. -- Turret head (Mach.), a vertical cylindrical revolving tool holder for bringing different tools into action successively in a machine, as in a lathe. -- Turret lathe, a turning lathe havi…
TWINNING n.
The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about. Polysynthetic twinning, repeated twinnin…
UNDER prep. 8 definitions
Below or lower, in place or position, with the idea of being covered; lower than; beneath; -- opposed to over; as, he stood under a tree; the carriage is under cover; a cellar extends under the whole house. Fruit put in bottles, and the bottles let down into wells under water, will keep long. Bacon. Be gathered now, ye…