Nick's suggestion

draft-ietf-quic-recovery.md

@@ -506,10 +506,10 @@ delay sending an acknowledgement.
 The PTO value MUST be set to at least kGranularity, to avoid the timer expiring
 immediately.
 
-When a PTO timer expires, the sender sends a probe packet as described in the
-next section. The PTO period then MUST be set to twice its current value. This
-exponential reduction in the sender's rate is important because the PTOs might
-be caused by loss of packets or acknowledgements due to severe congestion.
+When a PTO timer expires, the sender probes the network as described in the next
+section. The PTO period MUST be set to twice its current value. This exponential
+reduction in the sender's rate is important because the PTOs might be caused by
+loss of packets or acknowledgements due to severe congestion.
 
 A sender computes its PTO timer every time an ack-eliciting packet is sent. A
 sender might choose to optimize this by setting the timer fewer times if it