Metrical Substitution

Entertainment / Literature / Metrical Substitution: A way of varying poetic meter by taking a single foot of the normal meter and replacing it with a foot of different meter. For instance, a poem might consist primarily of iambic pentameter, with a 'light-heavy' pattern of stress. The poet might add variety by occasionally inserting a foot consisting of two stresses (spondeic substitution) or a foot with a reversed pattern of 'heavy-light' stress (trochaic substitution). See meter. When a poet uses metrical substitution to replace the first entire foot with a single stressed beat, the result is an acephalous line.
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Other Words for Substitution

Substitution Adverb Synonyms: exchange, exchanging, change, changing, replacement, replacing, supplanting, switch, switching, interchange, interchanging, swap or swop, swapping or swopping
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Same-Day Substitution

Business / Finance / Same-Day Substitution: Offsetting changes in a margin account during the day that result in no overall change in the balance of the account. MORE

Radially Symmetrical

Science / Biology / Radially Symmetrical: In animals, refers to organisms with their body parts arranged around a central axis. Such animals tend to be circular or cylindrical in shape. MORE

Substitution

Science / Biology / Substitution: A type of mutation in which one base is substituted for another. MORE