The wood itself is an ancient deer park, with an earthwork along its lower boundary.

She looked with both apprehension and longing at the enigmatic door, its lower boundary now under water.

Each lower boundary is defined by the first occurrence of the naming species.

The lower boundary of the model domain coincides with the ground.

They had reached the lower boundary after a full-power run from the south.

At the lower boundary of the liquid water level, below which her suit could not safely descend, she found it.

Don't forget, nature typically demonstrates only the lower boundaries of the possible.

The lower boundary can be known as the exobase.

The lower boundary of abdomen occasionally forms a deep curve.

Since some effort is required in both uttering and interpreting, c has a lower boundary.