coil a structure consisting of something wound in a continuous series of loops; "a coil of rope"
Adjective
secondary -
being of second rank or importance or value; not direct or immediate; "the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
primary not derived from or reducible to something else; basic; "a primary instinct"
unoriginal not original; not being or productive of something fresh and unusual; "the manuscript contained unoriginal emendations"; "his life had been unoriginal, conforming completely to the given pattern"- Gwethalyn Graham
alternative,
substitute,
alternate necessitating a choice between mutually exclusive possibilities; "alternative possibilities were neutrality or war"
collateral descended from a common ancestor but through different lines; "cousins are collateral relatives"; "an indirect descendant of the Stuarts"
indirect not direct in spatial dimension; not leading by a straight line or course to a destination; "sometimes taking an indirect path saves time"; "you must take an indirect course in sailing"
secondhand previously used or owned by another; "bought a secondhand (or used) car"
second-string being a replacement or substitute for a regular member of a team; "a second-string pitcher"
standby ready for emergency use; "a standby generator"; "a standby crew"
thirdhand derived from what is primary or original by two intermediate steps; "a thirdhand report"
secondary -
Succeeding next in order to the first; of second place, origin, rank, rank, etc. ; not primary; subordinate; not of the first order or rate.
secondary -
Acting by deputation or delegated authority; as, the work of secondary hands.
secondary -
Possessing some quality, or having been subject to some operation as substitution, in the second degree; as, a secondary salt, a secondary amine, etc. Compare primary.
secondary -
Subsequent in origin; -- said of minerals produced by alteration or deposition subsequent to the formation of the original rocks mass; also of characters of minerals as secondary cleavage, etc. developed by pressure or other causes.
secondary -
Pertaining to the second joint of the wing of a bird.
secondary -
Dependent or consequent upon another disease; as, Bright's disease is often secondary to scarlet fever; or occurring in the second stage of a disease; as, the secondary symptoms of syphilis.