Preposition: of

• land: The undulations of the land resembled in some places the waves of the sea.

• fin: Propulsion is by undulations of the small dorsal fin.

• melody: True - the undulations of the melody ( a " holy noise " ?

Converse of object

• have: Tracks which have undulations or are uphill suit his style.

• cause: The barge docked with a rusty clanging noise that caused an undulation in the tarpaulin covering the deck.

• remove: The hats brims are then ironed to even out the weave and remove any small undulations in the straw.

• contain: The round course contains significant undulations and there is quite a change in gradient up the straight.

Preposition: in

• surface: Earthworks:- undulations in the ground surface mark the location of the earlier church.

• ground: Deep hollows and undulations in the ground will often leave ordinary rollers hanging in mid air, achieving nothing.

• landscape: Some of these barrows are difficult to see as many of them are just undulations in the landscape.

• road: Driving was hard work with a constant need to correct the direction as it was disturbed by almost every undulation in the road.

Adjective modifier

• gentle: The gentle undulations of Capability Brown's landscape lie beyond.

• minor: Yes, we're talking at least minor undulations here.

• small: Changes in topography tend to be only small undulations.

• natural: This complements the natural undulations of the stone, in a way, producing a controlled form of man-made erosion.

• few: It is a 10 mile course with a few undulations.

• slight: This fills all the holes and slight undulations and gives a pleasing finish to the render.

Noun used with modifier

• surface: The probe is optimized for amplitude and bandwidth, in order to present small scale surface undulations of a high spatial frequency to users.

• body: Try to make your breast feel like your fly by using body undulation as in ( 12 ).

• frequency: Small imperfections disappear, and even higher frequency undulations seem not to disturb it at all.