diff --git a/crates/applications/buffer_proto5/src/main.rs b/crates/applications/buffer_proto5/src/main.rs
index 7fbcfc5..3e4f715 100644
--- a/crates/applications/buffer_proto5/src/main.rs
+++ b/crates/applications/buffer_proto5/src/main.rs
@@ -22,7 +22,7 @@ use coremem::real::{R32, Real as _};
 use coremem::render::CsvRenderer;
 use coremem::sim::spirv::{SpirvSim, WgpuBackend};
 use coremem::sim::units::{Seconds, Time as _};
-use coremem::stim::{CurlVectorField, Exp, ModulatedVectorField, Sinusoid, StimExt as _};
+use coremem::stim::{CurlVectorField, Exp, ModulatedVectorField, Sinusoid, TimeVaryingExt as _};
 use log::{error, info, warn};
 use serde::{Deserialize, Serialize};
 
diff --git a/crates/applications/multi_core_inverter/src/main.rs b/crates/applications/multi_core_inverter/src/main.rs
index 96d801b..a2774e5 100644
--- a/crates/applications/multi_core_inverter/src/main.rs
+++ b/crates/applications/multi_core_inverter/src/main.rs
@@ -44,7 +44,7 @@ use coremem::meas;
 use coremem::real::{self, Real as _};
 use coremem::sim::spirv::{self, SpirvSim};
 use coremem::sim::units::Seconds;
-use coremem::stim::{CurlVectorField, Exp, Gated, ModulatedVectorField, Scaled, Shifted, StimExt as _};
+use coremem::stim::{CurlVectorField, Exp, Gated, ModulatedVectorField, Scaled, Shifted, TimeVaryingExt as _};
 use coremem::Driver;
 
 // type R = real::R32;
diff --git a/crates/applications/sr_latch/src/main.rs b/crates/applications/sr_latch/src/main.rs
index b46fb76..b90dbca 100644
--- a/crates/applications/sr_latch/src/main.rs
+++ b/crates/applications/sr_latch/src/main.rs
@@ -7,7 +7,7 @@ use coremem::{Driver, mat, meas};
 use coremem::geom::{Coord as _, Meters, Torus};
 use coremem::sim::spirv::{SpirvSim, WgpuBackend};
 use coremem::sim::units::Seconds;
-use coremem::stim::{CurlVectorField, ModulatedVectorField, Sinusoid, StimExt as _};
+use coremem::stim::{CurlVectorField, ModulatedVectorField, Sinusoid, TimeVaryingExt as _};
 
 
 fn main() {
diff --git a/crates/coremem/src/sim/spirv/mod.rs b/crates/coremem/src/sim/spirv/mod.rs
index 978f22d..14eeec0 100644
--- a/crates/coremem/src/sim/spirv/mod.rs
+++ b/crates/coremem/src/sim/spirv/mod.rs
@@ -225,7 +225,7 @@ mod test {
         self,
         ModulatedVectorField,
         Sinusoid,
-        StimExt as _,
+        TimeVaryingExt as _,
         VectorField,
     };
     fn mean_magnitude_e<S: AbstractSim>(sim: &S) -> R32 {
diff --git a/crates/coremem/src/stim/mod.rs b/crates/coremem/src/stim/mod.rs
index 6f53b75..8783e79 100644
--- a/crates/coremem/src/stim/mod.rs
+++ b/crates/coremem/src/stim/mod.rs
@@ -20,9 +20,9 @@ pub use time_varying::{
     Scaled,
     Shifted,
     Sinusoid,
-    StimExt,
     Summed,
     TimeVarying,
+    TimeVaryingExt,
     UnitEH,
 };
 pub use vector_field::{
diff --git a/crates/coremem/src/stim/time_varying.rs b/crates/coremem/src/stim/time_varying.rs
index e48be85..425bd2c 100644
--- a/crates/coremem/src/stim/time_varying.rs
+++ b/crates/coremem/src/stim/time_varying.rs
@@ -7,8 +7,7 @@ pub trait TimeVarying<R> {
     fn at(&self, t_sec: R) -> FieldMags<R>;
 }
 
-// TODO: rename to TimeVaryingExt?
-pub trait StimExt<R>: Sized {
+pub trait TimeVaryingExt<R>: Sized {
     fn shifted(self, new_start: R) -> Shifted<R, Self> {
         Shifted::new(self, new_start)
     }
@@ -23,7 +22,7 @@ pub trait StimExt<R>: Sized {
     }
 }
 
-impl<R, T> StimExt<R> for T {}
+impl<R, T> TimeVaryingExt<R> for T {}
 
 impl<R: Real> TimeVarying<R> for FieldMags<R> {
     fn at(&self, _t_sec: R) -> FieldMags<R> {