An apparent slip of the tongue where Bill Clinton said his wife Hillary had 'frequently' experienced fainting episodes like the one that occurred Sunday got left on the cutting room floor when CBS aired its interview with the former president.

Clinton said his wife was 'feeling a lot better' in his interview with 'CBS This Morning' host Charlie Rose. But then the former president revealed she has experienced other fainting episodes 'on more than one occasion' with language that probably wasn't helpful to his wife's effort to reassure the public.

Asked whether there was a more serious illness at work, Clinton responded: 'Well if it is, it's a mystery to me and all of her doctors, because frequently — well not frequently, rarely — but on more than one occasion, over the last many, many years, the same sort of thing happened to her when she got severely dehydrated.'

But in the clip that got broadcast Monday evening, the part about 'frequently – well, not frequently, rarely' got cut out. It did air during a fuller broadcast Tuesday morning.

Bill Clinton said his wife 'frequently — well not frequently, rarely' has experienced fainting episodes when dehydrated. But the apparent flub got cut out of the piece that aired on CBS Evening News

Clinton's initial statement that there were 'frequently' other episodes might have prompted still more questions about Clinton's health, after one former Democratic National Committee Chair has said the party should at least think about updating policies in the event of replacing someone on the ticket.

The Daily Caller noted that the clip aired online but not in the Monday night broadcast.

The only widely known fainting episode occurred in 2012, when Clinton fell and hit her head, suffering a concussion.

The former president spoke about his wife's health on 'CBS This Morning' just days after Clinton nearly collapsed on the way to her vehicle after departing a Sept. 11th service early due to exhaustion and heat. Her campaign later revealed she had been diagnosed with pneumonia on Friday.

'The clip in question from former President Clinton's interview with Charlie Rose ran in its entirety on CBS THIS MORNING, CBSNews.com and on CBSN, CBS News' 24/7 digital streaming news service,' CBS said in a statement.

'One clip that ran on CBS Evening News was edited purely for time while on deadline for the live broadcast,' the statement continued.

If Clinton has any other sort of ailment that caused the problem, then 'it's a mystery to me and all of her doctors,' Bill Clinton said.

He pronounced his wife on the mend. 'She looked like a million bucks this morning. I can tell you she's feeling a lot better,' Clinton said.

Bill Clinton committed a flub when he accidentally said his wife had 'frequently' suffered fainting episodes, but the language didn't make it into the CBS Evening News broadcast

Bill Clinton said his wife Hillary is 'feeling a lot better' days after she stumbled leaving a Sept. 11th event in New York

Clinton spoke with CBS host Charlie Rose two days after his wife stumbled at a 9/11 event in New York

He continued: 'She's doing fine. She was even better last night before she went to sleep. She had a good night's sleep. She's doing fine.'

Describing the likely cause of what happened, Clinton told interviewer Charlie Rose, taking care with each word he chose: 'Frequently, not frequently … rarely but on more than one occasion over the last many many years – same sort of thing's happened to her when she's gotten severely dehydrated,' Clinton said.

'And she's worked like a demon as you know – secretary of state and as a senator and the year since,' he added, speaking to Clinton's heavy work load.

Bill said Clinton made the 'correct' decision to 'cancel her campaign date' – she jumped off the trail and skipped a California fundraising swing. He is standing in for his wife at her next rally in Pennsylvania.

Video has surfaced of Hillary Clinton appearing to stumble as she was led into a van after suffering a 'medical episode' during the 9/11 memorial service. Her doctor later revealed that she has been diagnosed with pneumonia

Clinton emerged from her daughter Chelsea's apartment after she was rushed from the 9/11 memorial service because of a 'medical episode'

Clinton was seen smiling and waving at customers at a nearby restaurant before getting into a van. She then traveled to her home in Chappaqua, New York, according to her campaign

But he said there was 'not a shot' she'd bee off the trail for a period of weeks while recovering. 'I'll be lucky to hold her back another day,' Clinton said. The New York Times reported Tuesday that Clinton won't be back out until Thursday.

Clinton said it was 'almost certain' his wife was healthier than Donald Trump, but noted that Trump has yet to release a full medical report on past conditions and health indicators.

'I think her lifestyle and her underlying indicators … means it's almost certain she's in better health than her opponent, but we don't know because he hasn't disclosed,' he said.

Trump has said he'll put out more information soon, likely on the Dr. Oz show. The Clinton camp plans to release more information this week.

Rose also asked Clinton about his own health, expressing some concern.

'Because I've lost weight?' Clinton wanted to know.