diff --git a/modules/poly/shared/src/main/scala/polynomial/object.scala b/modules/poly/shared/src/main/scala/polynomial/object.scala
index aac8618..1eefa6d 100644
--- a/modules/poly/shared/src/main/scala/polynomial/object.scala
+++ b/modules/poly/shared/src/main/scala/polynomial/object.scala
@@ -4,15 +4,15 @@ object `object`:
 
   type Store[S, A] = cats.data.Store[S, A]
 
-  case class Monomial[A, B, Y](input: A => Y, output: B)
+  case class Monomial[A, B, Y](yᵉˣᵖ: A => Y, coeff: B)
 
   sealed trait Binomial[+A1, +B1, +A2, +B2, Y]
   object Binomial:
-    case class Term1[A1, B1, Y](input: A1 => Y, output: B1) extends Binomial[A1, B1, Nothing, Nothing, Y]
-    case class Term2[A2, B2, Y](input: A2 => Y, output: B2) extends Binomial[Nothing, Nothing, A2, B2, Y]
+    case class Term1[A1, B1, Y](yᵉˣᵖ: A1 => Y, coeff: B1) extends Binomial[A1, B1, Nothing, Nothing, Y]
+    case class Term2[A2, B2, Y](yᵉˣᵖ: A2 => Y, coeff: B2) extends Binomial[Nothing, Nothing, A2, B2, Y]
 
   sealed trait Trinomial[+A1, +B1, +A2, +B2, +A3, +B3, Y]
   object Trinomial:
-    case class Term1[A1, B1, Y](input: A1 => Y, output: B1) extends Trinomial[A1, B1, Nothing, Nothing, Nothing, Nothing, Y]
-    case class Term2[A2, B2, Y](input: A2 => Y, output: B2) extends Trinomial[Nothing, Nothing, A2, B2, Nothing, Nothing, Y]
-    case class Term3[A3, B3, Y](input: A3 => Y, output: B3) extends Trinomial[Nothing, Nothing, Nothing, Nothing, A3, B3, Y]
\ No newline at end of file
+    case class Term1[A1, B1, Y](yᵉˣᵖ: A1 => Y, coeff: B1) extends Trinomial[A1, B1, Nothing, Nothing, Nothing, Nothing, Y]
+    case class Term2[A2, B2, Y](yᵉˣᵖ: A2 => Y, coeff: B2) extends Trinomial[Nothing, Nothing, A2, B2, Nothing, Nothing, Y]
+    case class Term3[A3, B3, Y](yᵉˣᵖ: A3 => Y, coeff: B3) extends Trinomial[Nothing, Nothing, Nothing, Nothing, A3, B3, Y]
\ No newline at end of file